Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
5113607
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 273
TF target 265
Factored
FactorDigitsBitsDate
151438355741205761084332373.72025-01-04 06:14:55
ECM
DigitsB1Curves
255000061 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1998-06-20John Wyszynski833D6B3625AF43660Linux 32-bit,Prime95,v16,(aka WS2)
Factored2000-11-05Kevin Jaget833D6B3625AF436627906Linux 32-bit,Prime95,v20,(aka WW2)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-01-09kurly8ACC3FD34B8508CB167546553
History
DateUserTypeResult
2025-01-09KongoCacheCERT
Proof certified good
2025-01-09kurlyC-PRPM5113607/15143835574120576108433 : 8ACC3FD34B8508CB
Proof Certified Good

Proof Power: 7

2025-01-04fordobrF-ECMFactor: 15143835574120576108433 / ECM curve 32, B1=50000, B2=31130190, Edwards Sigma=6772277401185888
2024-07-29Andrew BNFno factor TF: 72-73
2024-07-29Andrew BNFno factor TF: 71-72
2022-07-12Sid & AndyNF-PM1B1=4000000, B2=10301320260
2022-01-11mikrNFno factor TF: 70-71
2020-12-15-anonymous-NFno factor TF: 69-70
2020-11-30TJAOINFno factor TF: 68-69
2019-01-20takahashiNF-PM1B1=1000000, B2=33000000, E=12
2019-01-18KingNF-PM1B1=750000, B2=17500000
2018-06-20ramgeisNFno factor TF: 67-68
2016-05-18Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 62-63
2015-08-05snme2pm1NFno factor TF: 65-66
2014-12-14VictordeHollanderNFno factor TF: 64-65
2014-12-14VictordeHollanderNFno factor TF: 63-64
2009-09-02USAFSSNF-PM1B1=55000, B2=921250, E=6
2009-07-27GrunwalderGIMPNFno factor TF: 1-63
2008-12-28Sturle SundeNFno factor TF: 61-62
2000-11-05Kevin JagetC-LL833D6B3625AF4366
2000-09-08Kevin JagetNF-PM1B1=25000, B2=193750
1998-06-20-anonymous-C-LL833D6B3625AF4366
1998-02-19-anonymous-NFno factor TF: 1-61