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
3622811
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 264
Factored
FactorDigitsBitsDate
576496755130491445.7old
1564646640850071547.22008-09-30 21:29:47
515062635894627293212065.52018-12-06 11:25:11
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbk232F9604C391A7862013
Factored
PRP without proof (not generated)
2017-11-27Oliver Kruse232F9604C391A7862202387313
Verified
PRP without proof (not generated)
2018-12-08Oliver Kruse0405487C4B189267386167853
Verified
PRP without proof (not generated)
2018-12-08storm55100405487C4B1892673240698953
History
DateUserTypeResult
2022-09-09JossNF-PM1B1=1000000, B2=212677920
2022-06-13LordJuliusNFno factor TF: 66-67
2022-03-26JossNF-PM1B1=1000000, B2=147585900
2022-03-21ANONYMOUSNF-PM1B1=100000, B2=38206140
2022-03-19ANONYMOUSNF-PM1B1=100000
2022-02-15JossNFno factor TF: 67-68
2018-12-08storm5510C-PRPM3622811/57649675513049/156464664085007/51506263589462729321 : 0405487C4B189267
2018-12-08Oliver KruseC-PRPM3622811/57649675513049/156464664085007/51506263589462729321 : 0405487C4B189267
2018-12-06TJAOIFFactor: 51506263589462729321
2017-11-27Oliver KruseC-PRPM3622811/57649675513049/156464664085007 : 232F9604C391A786
2017-09-20kkmrkkblmbrbkC-PRPM3622811/156464664085007/57649675513049 : 232F9604C391A786
2008-09-30markrFFactor: 156464664085007