post prime numbers here

Message Bookmarked

Bookmark Removed

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:08 (twenty-one years ago)

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:11 (twenty-one years ago)

― Pears can just fuck right off. (kenan), Tuesday, 30 November 2004 23:12 (twenty-one years ago)

4177

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:13 (twenty-one years ago)

101

― Pears can just fuck right off. (kenan), Tuesday, 30 November 2004 23:13 (twenty-one years ago)

Is this fun? I can't tell.

― Pears can just fuck right off. (kenan), Tuesday, 30 November 2004 23:13 (twenty-one years ago)

is the pope catholic?

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:14 (twenty-one years ago)

599

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:14 (twenty-one years ago)

USE ONE RIEMANN ZETA FUNCTION

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:14 (twenty-one years ago)

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:15 (twenty-one years ago)

― It's hard to kill a horse with a flute (AaronHz), Tuesday, 30 November 2004 23:16 (twenty-one years ago)

Fuck you, I was just about to post 37.

Okay then, 17.

― Sanjay McDougal (jaymc), Tuesday, 30 November 2004 23:18 (twenty-one years ago)

http://www.trigonalmayhem.com/primebear.jpg

― trigonalmayhem (trigonalmayhem), Tuesday, 30 November 2004 23:20 (twenty-one years ago)

http://alumnus.caltech.edu/~chamness/prime.html

55207

― MindInRewind (Barry Bruner), Tuesday, 30 November 2004 23:20 (twenty-one years ago)

have you seen the Malcom In The Middle where the teacher, who used to be a Krelboyn, comes into Malcom's class and starts implementing a grading scale based on three or four decimal points, so they all have 99.9995% class rankings and it starts making everyone really freaked out except malcom because he's ranked number one. at one point all the kids freak out and try to outsmart each other and they start reciting all of the prime numbers. ROBBLE ROBBLE.

― JaXoN (JasonD), Tuesday, 30 November 2004 23:21 (twenty-one years ago)

12,967

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:22 (twenty-one years ago)

is no one else helpless amused by the prime number "shitting" bear?

I left that thing up for almost 300 hours until my old computer crashed.

― trigonalmayhem (trigonalmayhem), Tuesday, 30 November 2004 23:24 (twenty-one years ago)

1299013

― caitlin oh no (caitxa1), Tuesday, 30 November 2004 23:25 (twenty-one years ago)

helplessLY
egad my typing gets worse every day

also
15,559

― trigonalmayhem (trigonalmayhem), Tuesday, 30 November 2004 23:25 (twenty-one years ago)

70,999

― trigonalmayhem (trigonalmayhem), Tuesday, 30 November 2004 23:39 (twenty-one years ago)

151

― Onimo (GerryNemo), Tuesday, 30 November 2004 23:42 (twenty-one years ago)

87,403

― Pears can just fuck right off. (kenan), Tuesday, 30 November 2004 23:43 (twenty-one years ago)

― Gravel Puzzleworth (Gregory Henry), Wednesday, 1 December 2004 00:18 (twenty-one years ago)

― roxymuzak (roxymuzak), Wednesday, 1 December 2004 00:36 (twenty-one years ago)

1973, 1979, 1987, 1993, 1997, 1999 and 2003

― Michael Daddino (epicharmus), Wednesday, 1 December 2004 00:56 (twenty-one years ago)

The prime-number-shitting bear is indeed one of the greatest things ever. But it's cooler in motion. You need to make an animated gif or something.

― Casuistry (Chris P), Wednesday, 1 December 2004 02:03 (twenty-one years ago)

2^24036583-1

― Guayaquil, Wednesday, 1 December 2004 02:41 (twenty-one years ago)

23, my age. Funny that it appears in someone's email address here yet that person didn't mention it. Like it's a secret he/she is whispering with every post.

― Maxwell von Bismarck (maxwell von bismarck), Wednesday, 1 December 2004 02:46 (twenty-one years ago)

― Sterling Clover (s_clover), Wednesday, 1 December 2004 02:58 (twenty-one years ago)

(it is prime in base 4)

― Sterling Clover (s_clover), Wednesday, 1 December 2004 03:01 (twenty-one years ago)

and in hex.

― Sterling Clover (s_clover), Wednesday, 1 December 2004 03:02 (twenty-one years ago)

Funny that it appears in someone's email address here yet that person didn't mention it. Like it's a secret he/she is whispering with every post.

SHHHHHHH! Damnit, you'll get us all KILLED!

― Pears can just fuck right off. (kenan), Wednesday, 1 December 2004 03:07 (twenty-one years ago)

31337

― TITS.JPG (ex machina), Wednesday, 1 December 2004 03:12 (twenty-one years ago)

8 oz.

― gabbneb (gabbneb), Wednesday, 1 December 2004 03:13 (twenty-one years ago)

34.57

― Sterling Clover (s_clover), Wednesday, 1 December 2004 05:05 (twenty-one years ago)

you just broke the thread. positive integers only please.

― caitlin oh no (caitxa1), Wednesday, 1 December 2004 05:09 (twenty-one years ago)

Two more: 7,853 and 31,471.

― Drama Queen Wannabe (Dee the Lurker), Wednesday, 1 December 2004 05:29 (twenty-one years ago)

Didn't someone already say 31,471?

― Casuistry (Chris P), Wednesday, 1 December 2004 05:30 (twenty-one years ago)

I don't know. I just blindly posted here.

Okay, another one: 890,587.

(After scrolling up:) Nope, no one's posted it yet, it seems.

― Drama Queen Wannabe (Dee the Lurker), Wednesday, 1 December 2004 05:33 (twenty-one years ago)

(As a Duran fan, I am beholden to the number 7. *wink*)

― Drama Queen Wannabe (Dee the Lurker), Wednesday, 1 December 2004 05:34 (twenty-one years ago)

12 (base 4) = 6 (base 10) = not prime
12 hex = 18 decimal = not prime

actually, thanks for the numbers - i needed a bunch of primes yesterday when i was looking at optimal sizes for hash tables (they need to be prime to minimise collisions, or something) but didn't get as far as working any of them out.

― koogs (koogs), Wednesday, 1 December 2004 10:04 (twenty-one years ago)

wtf! 12 is also prime in base 10 too.

― Sterling Clover (s_clover), Wednesday, 1 December 2004 13:29 (twenty-one years ago)

OK, Stirling, what's the joke?

― Michael Jones (MichaelJ), Wednesday, 1 December 2004 13:53 (twenty-one years ago)

Sterling, even. Damn.

― Michael Jones (MichaelJ), Wednesday, 1 December 2004 13:53 (twenty-one years ago)

HASHTABLEZ

― TITS.JPG (ex machina), Wednesday, 1 December 2004 19:05 (twenty-one years ago)

Optimal sizes for hash tables should actually be direct powers of 2, but prime numbers are useful for hashing functions.

― donut christ (donut), Wednesday, 1 December 2004 19:52 (twenty-one years ago)

"DIRECT POWERS OF TWO"!

― donut christ (donut), Wednesday, 1 December 2004 19:53 (twenty-one years ago)

WIZARD IS HUNGry
MATHEMATIC ATTACK
DIRECT POWERS OF TWO

at the all ages Semaphore.. 17+ (prime number ages get in free)

― donut christ (donut), Wednesday, 1 December 2004 19:54 (twenty-one years ago)

(haha, ok not all ages then)

― donut christ (donut), Wednesday, 1 December 2004 19:55 (twenty-one years ago)

2^13466917^-1

― Steve.n. (sjkirk), Wednesday, 1 December 2004 19:57 (twenty-one years ago)

along the lines of steve.n and guayaquil,

23! + 1
245! + 1
96000! + 1
etc.

― peter smith (plsmith), Wednesday, 1 December 2004 20:02 (twenty-one years ago)

So, why are the numbers in between prime pairs (a pair of prime numbers where one is two more than the other) always evenly divisible by 6?

5 (6) 7
11 (12) 13
17 (18) 19
29 (30) 31
etc.

― donut christ (donut), Wednesday, 1 December 2004 20:07 (twenty-one years ago)

i got it - every number between two primes must be even. so, it must be equiv to 0,2, or 4 (modulo 6). but, if it's equiv to 2 or 4 (mod 6), then a number adjacent to it is equiv to 3 (mod 6). any number equiv to 3 (mod 6) is divisible by 3 (i can prove that lemma, too), and thus not prime.

QEDMF!

― peter smith (plsmith), Wednesday, 1 December 2004 21:40 (twenty-one years ago)

I should start using my WIZARD IS HUNG aim name

― LORD OF ALL THINGS HOMOELECTRONIC (trigonalmayhem), Wednesday, 1 December 2004 23:02 (twenty-one years ago)

again

― LORD OF ALL THINGS HOMOELECTRONIC (trigonalmayhem), Wednesday, 1 December 2004 23:02 (twenty-one years ago)

> Optimal sizes for hash tables should actually be direct powers of 2, but prime numbers are useful for hashing functions.

well, there seem to be two different schools of thought on this because a lot of what i read the other day was concerned with finding the next prime number after double the current table size (for rehashing). microsoft's c# stuff uses this method i believe.

that said, because finding which bucket a value belongs in is typically:

bucket_address = hash(key) % hash_table_size;

i can see why factors of two for hash_table_size would be useful (because it turns the (computationally expensive) % operation into a (v cheap) bitwise and)

but yes, all the multipliers and constants in code i've seen have been prime. the whole idea, of course, is to share the hash values equally amongst the buckets.

have we had
446087557183758429571151706402101809886208632412859901111991219963404685792820473369112545269003989026153245931124316702395758705693679364790903497461147071065254193353938124978226307947312410798874869040070279328428810311754844108094878252494866760969586998128982645877596028979171536962503068429617331702184750324583009171832104916050157628886606372145501702225925125224076829605427173573964812995250569412480720738476855293681666712844831190877620606786663862190240118570736831901886479225810414714078935386562497968178729127629594924411960961386713946279899275006954917139758796061223803393537381034666494402951052059047968693255388647930440925104186817009640171764133172418132836351
yet?

― koogs (koogs), Thursday, 2 December 2004 09:23 (twenty-one years ago)

dammit - does no one care about my off-the-cuff prime pairs proof? well, no matter. i do.

― peter smith (plsmith), Thursday, 2 December 2004 15:09 (twenty-one years ago)

― o. nate (onate), Thursday, 2 December 2004 16:17 (twenty-one years ago)

five years pass...

49999

― un(!)registered (unregistered), Wednesday, 6 January 2010 01:30 (sixteen years ago)

59999

― un(!)registered (unregistered), Wednesday, 6 January 2010 01:31 (sixteen years ago)

79999

― un(!)registered (unregistered), Wednesday, 6 January 2010 01:31 (sixteen years ago)

7919

― Mordy, Wednesday, 6 January 2010 01:35 (sixteen years ago)

good one!

― un(!)registered (unregistered), Wednesday, 6 January 2010 01:40 (sixteen years ago)

I'm going to challenge myself and see if I can remember all of the prime integers 1-100:

1 2 3 5 7 9 11 13 17 19 23 29 31 37 43 47 53 59 61 67 71 73 79 83 89 97

― kenan, Wednesday, 6 January 2010 02:35 (sixteen years ago)

hell yeah, nailed it

― kenan, Wednesday, 6 January 2010 02:38 (sixteen years ago)

65516468355*2^333333+1

― abanana, Wednesday, 6 January 2010 02:42 (sixteen years ago)

IIRC one is not prime

― moonship journey to baja, Wednesday, 6 January 2010 02:58 (sixteen years ago)

You're right.

Damnit. Failed on a technicality.

― kenan, Wednesday, 6 January 2010 03:13 (sixteen years ago)

five years pass...

1733

― alo lin (alomar lines), Monday, 9 November 2015 06:03 (ten years ago)

61. Which is also my age, as of today.

― Aimless, Monday, 9 November 2015 06:11 (ten years ago)

... 59 61 67 71 73 79 83 89 97

looks like I've got maybe 6 more prime birthdays to go, if I'm lucky

― Aimless, Monday, 9 November 2015 06:25 (ten years ago)

20,988,936,657,440,586,486,151,264,256,610,222,593,863,921

(largest prime found without the aid of computers)

― There's no Hell, so we'll improvise (Sanpaku), Monday, 9 November 2015 14:59 (ten years ago)

two years pass...

GIMPS Project Discovers Largest Known Prime Number: 277,232,917-1
RALEIGH, NC., January 3, 2018 -- The Great Internet Mersenne Prime Search (GIMPS) has discovered the largest known prime number, 277,232,917-1, having 23,249,425 digits. A computer volunteered by Jonathan Pace made the find on December 26, 2017. Jonathan is one of thousands of volunteers using free GIMPS software available at www.mersenne.org/download/.
The new prime number, also known as M77232917, is calculated by multiplying together 77,232,917 twos, and then subtracting one. It is nearly one million digits larger than the previous record prime number, in a special class of extremely rare prime numbers known as Mersenne primes. It is only the 50th known Mersenne prime ever discovered, each increasingly difficult to find. Mersenne primes were named for the French monk Marin Mersenne, who studied these numbers more than 350 years ago. GIMPS, founded in 1996, has discovered the last 16 Mersenne primes. Volunteers download a free program to search for these primes, with a cash award offered to anyone lucky enough to find a new prime. Prof. Chris Caldwell maintains an authoritative web site on the largest known primes, and has an excellent history of Mersenne primes.
The primality proof took six days of non-stop computing on a PC with an Intel i5-6600 CPU. To prove there were no errors in the prime discovery process, the new prime was independently verified using four different programs on four different hardware configurations.

https://www.mersenne.org/primes/press/M77232917.html

― Karl Malone, Friday, 5 January 2018 19:27 (eight years ago)

https://fivethirtyeight.com/features/we-have-a-new-prime-number-and-its-23-million-digits-long/

https://espnfivethirtyeight.files.wordpress.com/2018/01/roeder-primes-1.png?w=1150&h=564&quality=90&strip=info

― Karl Malone, Friday, 5 January 2018 19:28 (eight years ago)

tldr please just post the number next time

― Scatperson (ski-ba-bop-ba-dop-whore.) (Sufjan Grafton), Friday, 5 January 2018 19:42 (eight years ago)

this bubble has got to burst eventually

― j., Friday, 5 January 2018 19:45 (eight years ago)

if you bought in prime numbers in 1600 and just let it ride for 418 years while also somehow living that long, you'd be sitting prettttty well right now.

what drove the prime number gain in the mid-20th century? WW2, cryptography?

― Karl Malone, Friday, 5 January 2018 19:49 (eight years ago)

computers in general, aiui

― sleeve, Friday, 5 January 2018 19:50 (eight years ago)

verifying these shits by hand is impossible in a single human lifetime

― mh, Friday, 5 January 2018 20:00 (eight years ago)

hard to distinguish shit from fresh stouffers by hand

― Scatperson (ski-ba-bop-ba-dop-whore.) (Sufjan Grafton), Friday, 5 January 2018 20:16 (eight years ago)

the guy who discovered 7 in the late 16th century must have thought he was hot stuff

― k3vin k., Friday, 5 January 2018 20:39 (eight years ago)

two months pass...

https://pbs.twimg.com/media/DXpm2wBU0AEey9H.jpg

― mark s, Wednesday, 7 March 2018 16:09 (seven years ago)

(consists of 6399 9s and one 8, good work everyone)

― mark s, Wednesday, 7 March 2018 16:10 (seven years ago)

four years pass...

i like this one immensely:

997699

― mark s, Saturday, 24 September 2022 13:10 (three years ago)

https://i.imgur.com/bzYQ9hP.jpg

― Wiggum Dorma (wins), Saturday, 24 September 2022 13:20 (three years ago)

hellping ppl more like

― mark s, Saturday, 24 September 2022 13:29 (three years ago)

thats right

― Wiggum Dorma (wins), Saturday, 24 September 2022 14:02 (three years ago)

two months pass...

1000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 5537073003

― | (Latham Green), Wednesday, 7 December 2022 18:31 (three years ago)

Are prime numbers inherently funny, or do they come across as kind of desperate in a Dana Carvey sense?

― Hideous Lump, Wednesday, 7 December 2022 19:29 (three years ago)

37663

― StanM, Wednesday, 7 December 2022 19:36 (three years ago)

3
31
314159
31415926535897932384626433832795028841

― ledge, Wednesday, 7 December 2022 19:52 (three years ago)

The number R49081, i.e. 49,081 1s in a row

https://mersenneforum.org/showpost.php?p=602219&postcount=35

― G. D’Arcy Cheesewright (silby), Wednesday, 7 December 2022 20:33 (three years ago)

314159 is so cute!

― | (Latham Green), Thursday, 8 December 2022 15:48 (three years ago)

6667673

― ciderpress, Thursday, 8 December 2022 16:05 (three years ago)

1201301401

― ciderpress, Thursday, 8 December 2022 16:06 (three years ago)

1201301401 - now that's a number!! three zeroes in there

― | (Latham Green), Thursday, 8 December 2022 20:45 (three years ago)

if you like zeroes check out 1001001901

― ciderpress, Thursday, 8 December 2022 20:53 (three years ago)

383838383838383

― ciderpress, Thursday, 8 December 2022 20:56 (three years ago)

shut the fuck up

― G. D’Arcy Cheesewright (silby), Thursday, 8 December 2022 21:02 (three years ago)

I don't LOVE zeroes but they have their moments

― | (Latham Green), Monday, 12 December 2022 19:33 (three years ago)

― Fash Gordon (Neanderthal), Monday, 12 December 2022 23:01 (three years ago)

please don't post 59

― | (Latham Green), Tuesday, 13 December 2022 16:05 (three years ago)

from ai

"write a sad poem about the number 56598. you are sad because it is not a prime number"

The number 56598 is just a number,
But to me, it holds great sorrow.
For though it may be big and bold,
It's not a prime, and that makes me feel old.

I once thought this number was so great,
But now I see its flaws and my heart fills with hate.
It's not a prime, it's just a composite,
And that makes me feel like such an idiot.

I thought I knew math, I thought I was smart,
But now I see that I was only playing a part.
56598, you may be big and strong,
But you'll never be a prime, and that's just wrong.

So I'll mourn this number, I'll weep and I'll wail,
For it's not a prime and that makes me feel so pale.
56598, you were once my favorite,
But now you've let me down, and that's just not right.

― | (Latham Green), Tuesday, 13 December 2022 21:22 (three years ago)

mfer really rhymed favorite with right

― ciderpress, Tuesday, 13 December 2022 22:53 (three years ago)

You must be logged in to post. Please either login here, or if you are not registered, you may register here.