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
5410511
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 272
TF target 266
Factored
FactorDigitsBitsDate
5546932954125454016608972478.92025-03-11 12:37:48
ECM
DigitsB1Curves
255000025 / 280
Estimated T-Level: 20.4
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1998-09-13Team love_festAF8CEFAB62F7D4550Windows,Prime95,v16,(aka WS1)
Factored2000-08-10BALTZER FrancoisAF8CEFAB62F7D4551933946Linux 32-bit,Prime95,v19,(aka WV2)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-03-17blin00D6E738C352BB431B1303280953
History
DateUserTypeResult
2025-03-17mattashiiCERT
Proof certified good
2025-03-17blin00C-PRPM5410511/554693295412545401660897 : D6E738C352BB431B
Proof Certified Good

Proof Power: 7

2025-03-11fordobrF-ECMFactor: 554693295412545401660897 / ECM curve 9, B1=50000, B2=45039225, Edwards Sigma=3187464285409695
2022-08-02Sid & AndyNF-PM1B1=5000000, B2=7303965900
2021-09-18SRBaseNFno factor TF: 71-72
2021-09-06SRBaseNFno factor TF: 70-71
2021-08-23SRBaseNFno factor TF: 69-70
2021-06-12Dylan DelgadoNF-PM1B1=2170000, B2=175770000
2020-09-21TJAOINFno factor TF: 68-69
2019-07-23GdSNF-PM1B1=1807207, B2=48794593
2018-06-29ramgeisNFno factor TF: 67-68
2016-06-18Gordon SpenceNFno factor TF: 66-67
2015-08-21snme2pm1NFno factor TF: 65-66
2014-12-29monstNFno factor TF: 64-65
2014-12-28NesowaNFno factor TF: 63-64
2010-10-18Squeeky_SquirrelNF-PM1B1=60000, B2=960000, E=6
2009-08-23Carsten KossendeyNF-PM1B1=25000, B2=350000
2008-09-11-anonymous-NFno factor TF: 1-63
2000-08-10-anonymous-C-LLAF8CEFAB62F7D455
1998-09-13-anonymous-C-LLAF8CEFAB62F7D455
1998-05-01slaurNFno factor TF: 1-62
1998-03-17-anonymous-NFno factor TF: 1-61