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·	Forum	Last Post	Threads	Posts
New To GIMPS? Start Here!
	Information & Answers (7 Viewing)	Non-Important Assignment Question by LOBES 2021-05-14 17:17	1,311	11,508
	Homework Help (1 Viewing)	If a b= 0, how do I prove a and/or b =0? by Dr Sardonicus 2021-04-29 15:35	182	2,470
Fun Stuff
	Lounge (12 Viewing)	Mersenne Prime or not? (Is that a question?) by Batalov 2021-05-15 00:16	1,645	54,508
	Puzzles (4 Viewing)	May 2021 - Challenge by Walter 2021-05-05 17:13	843	14,908
Great Internet Mersenne Prime Search
	News (6 Viewing) https://www.mersenne.org/ Sub-Forums: GIMPS Board of Directors News	Amazon Smile by jovada 2021-05-10 08:29	23	5,454
	Hardware (14 Viewing) Sub-Forums: GPU Computing, Cloud Computing	Tips for building mfaktc 0.21 on Ubuntu 20.04 by kriesel 2021-05-14 16:00	1,965	46,829
	PrimeNet (5 Viewing) https://www.mersenne.org/primenet/ Sub-Forums: GPU to 72, MISFIT	GPU72 Largest 100 Factors Found by ewmayer 2021-05-14 22:36	1,372	31,610
	Software (9 Viewing) https://www.mersenne.org/freesoft.htm Sub-Forums: Mlucas	Prime95 v30.4/30.5/30.6 by ATH 2021-05-12 20:38	2,049	27,817
	Math (4 Viewing) Sub-Forums: Number Theory Discussion Group	A pretty good challenge by Charles Kusniec 2021-05-08 16:50	1,175	15,568
	Data (6 Viewing) Sub-Forums: mersenne.ca, Teams, Marin's Mersenne-aries	Strategic double and triple checks (PRP's and P-1's too) by kriesel 2021-05-14 20:29	606	16,383
Prime Search Projects
	Riesel Prime Search (5 Viewing)	Choose your own K and work on finding a top-5000 prime! by Happy5214 2021-05-13 02:33	211	19,260
	No Prime Left Behind (8 Viewing) http://www.noprimeleftbehind.net/ Sub-Forums: Raiders of the Lost Primes	Report top-5000 primes for all k<=1001 by odicin 2021-05-09 11:51	184	14,785
	Conjectures 'R Us (7 Viewing) http://www.noprimeleftbehind.net/crus/	Bases 501-1030 reservations/statuses/primes by rebirther 2021-05-14 18:22	150	21,735
	Twin Prime Search http://www.noprimeleftbehind.net/tps/	LLRnet and PRPnet servers for automated LLR by gd_barnes 2021-05-13 21:13	108	4,098
	Sierpinski/Riesel Base 5 (2 Viewing) http://www.sr5.psp-project.de/	"Mixed Sierpinski conjecture base 5" proven!! (if probable primes allowed) by sweety439 2020-12-21 14:08	146	3,034
	Prime Sierpinski Project (2 Viewing) http://www.psp-project.de/	Prime found, k=168451 eliminated by Dr Sardonicus 2017-09-28 14:55	223	3,017
	Five or Bust - The Dual Sierpinski Problem (2 Viewing)	How can I run PRP test? by Puzzle-Peter 2020-11-25 14:27	21	868
	Proth Prime Search (1 Viewing) http://www.prothsearch.com/	Proth primes with k = 1281979 by bur 2021-05-03 07:40	12	251
	Wagstaff PRP Search (2 Viewing) http://mprime.s3-website.us-west-1.amazonaws.com/wagstaff/	Possible proof of Reix' conjecture (Wagstaff primes, plus some issues) by T.Rex 2021-03-20 18:18	12	707
	Prime Gap Searches (1 Viewing)	Prime gaps in residue classes - where CSG > 1 is possible by mart_r 2021-05-14 15:58	79	4,618
	And now for something completely different (3 Viewing)	Carol / Kynea 2021 Project Goals by rogue 2021-05-14 21:14	68	1,844
Factoring Projects
	Factoring (3 Viewing)	Pascal's OPN roadblock files by Pascal Ochem 2021-05-10 20:26	932	22,750
	CADO-NFS (4 Viewing) http://cado-nfs.gforge.inria.fr/	Parameter explorations for CADO 165-170 digits by bur 2021-05-10 17:18	20	912
	Msieve (4 Viewing) http://www.boo.net/~jasonp/qs.html	Msieve benchmarking by VBCurtis 2021-05-12 21:32	319	9,547
	YAFU (3 Viewing) http://sites.google.com/site/bbuhrow/	YAFU 2.0 by bsquared 2021-05-11 15:02	155	4,185
	NFS@Home (10 Viewing) http://escatter11.fullerton.edu/nfs/	2021 “small” 15e post processing reservations and results by swellman 2021-05-15 00:12	90	12,270
	Aliquot Sequences (5 Viewing) https://www.rechenkraft.net/aliquot/AllSeq.html	Aliquot sequence reservations by Batalov 2021-05-14 23:47	296	22,890
	Lone Mersenne Hunters (6 Viewing) Sub-Forums: LMH > 100M	fond of a factor? Urn yourself to become remains by Jwb52z 2021-05-12 14:55	611	8,627
	Cunningham Tables (4 Viewing) http://homes.cerias.purdue.edu/~ssw/cun/	Extension to the Base 2 tables from 1300 to 1500, LM to 3000 by charybdis 2021-02-28 13:51	81	4,944
	GMP-ECM (3 Viewing) http://www.loria.fr/~zimmerma/records/ecmnet.html	P+1 test is also P-1 ? by patnashev 2021-05-01 15:18	286	4,337
	Operation Billion Digits (2 Viewing) https://www.mersenne.ca/obd	Ten Billion Digits Mersenne Numbers by LaurV 2021-02-27 07:14	54	3,196
	FactorDB (1 Viewing) http://www.factordb.com/	Add option to submit unsuccesful ECM work done by Uncwilly 2021-05-14 17:29	82	4,227
	Operazione Doppi Mersennes (4 Viewing) http://www.doublemersennes.org/	Trial division with CUDA (mmff) -- used, but runs like new! by ET_ 2021-05-10 16:58	48	2,632
	Operation Kibibit (2 Viewing) http://en.wikipedia.org/wiki/RSA-1024	Poly select and test-sieving for RSA232 by VBCurtis 2020-01-07 01:57	11	493
	XYYXF Project http://www.primefan.ru/xyyxf/default.html	Leyland Primes (x^y+y^x primes) by pxp 2021-04-30 00:51	20	1,778
	FermatSearch (3 Viewing) http://www.fermatsearch.org/	Reservations by ET_ 2021-04-25 19:47	47	1,154
Math Stuff
	Computer Science & Computational Number Theory (3 Viewing) Sub-Forums: PARI/GP	Verification of Feitsma's psp(2) data by pinhodecarlos 2021-03-31 12:36	128	5,708
	Other Mathematical Topics (2 Viewing)	*A prime number "game of life": can floor(yp#) always be prime?** by mart_r 2021-05-14 16:30	60	1,045
	Probability & Probabilistic Number Theory (2 Viewing)	Sieving success as a heuristic for odds of a prime by diep 2020-11-21 17:14	10	130
	Abstract Algebra & Algebraic Number Theory (1 Viewing)	*Excepted (kb^n+c)/gcd(k+c,b-1) prime count for n <= given number** by LaurV 2020-12-03 06:40	27	143
	Analysis & Analytic Number Theory (2 Viewing)	Fermat method best case by xilman 2021-02-07 09:23	12	108
	Combinatorics & Combinatorial Number Theory (3 Viewing)	is the factorisation of Mp-1 an advantage ? by LaurV 2021-02-24 02:31	5	26
	Tales From the Crypt(o) (2 Viewing) uggcf://ra.jvxvcrqvn.bet/jvxv/Gnyrf_sebz_gur_Pelcg_(GI_frevrf)	'All Your Data ❝Я❞ Belong To Us' Thread by Nick 2021-05-06 12:24	13	537
Extra Stuff
	Soap Box (8 Viewing)	Brexit by Nick 2021-05-14 08:08	515	31,628
	Miscellaneous Math (5 Viewing) http://primes.utm.edu/notes/crackpot.html	How to get to a prime from the previous prime number (sieve of Eratosthenes rediscovered) by Dr Sardonicus 2021-05-11 14:57	797	18,187
	Science & Technology (1 Viewing)	2020 the year in space prediction thread. by johnnn943 2021-05-13 07:17	231	10,296
	Hobbies (2 Viewing) Sub-Forums: Astronomy, Chess, Reading, Computer Games	10th Planet Discovered by johnnn943 2021-05-13 07:07	570	9,272
	Programming (4 Viewing)	Fast continued fraction cruncher by sinandredemptio 2021-04-05 15:14	351	4,765
	Linux (2 Viewing)	Vim Adventure? by Xyzzy 2021-04-30 00:41	198	1,781
	Languages -- Ancient & Modern, Human & Machine (1 Viewing)	Foreign words with a twist by Dr Sardonicus 2021-03-29 15:43	9	146
	Blogorrhea (6 Viewing) Sub-Forums: Alberico Lepore, carpetpool, chalsall, cmd, Dylan14, EdH, enzocreti, gophne, jasong, JCoveiro, jvang, jwaltos, kriesel, LaurV, MattcAnderson, MisterBitcoin, ONeil, Raman, science_man_88, storflyt32, storm5510, sweety439, Viliam Furik	Lepore Factorization nr.88 by Alberico Lepore 2021-05-11 17:36	681	12,302
Other Stuff
	Archived Projects (9 Viewing) Sub-Forums: 15k Search, NFSNET Discussion, Octoproth Search, 3*2^n-1 Search, Prime Cullen Prime, PSearch, Riesel Base 3 Attack, NeRDs, ElevenSmooth	What happened to the 11-Smooth website? by wblipp 2019-05-08 01:54	464	5,817
	Forum Feedback (2 Viewing) http://www.mersenneforum.org/	Fetch text contents of a topic by Xyzzy 2021-05-05 17:15	310	5,409
	Open Projects (2 Viewing) Sub-Forums: Riesel Prime Data Collecting (k*2^n-1), y-cruncher	How to create a log file? by sp00n 2021-03-24 12:51	47	1,525
	Wikis (3 Viewing) Sub-Forums: mersennewiki, Prime Wiki	Prime-Wiki by henryzz 2021-01-02 00:42	53	906
	Flea Market (2 Viewing)	FS - Asus "NUC" w/ memory and SSD by Xyzzy 2021-05-05 18:17	1	4
	David Hasselhoff https://en.wikipedia.org/wiki/David_Hasselhoff	Private	0	0
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