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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MnDetails
8322557
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
12539939521248411650.2old
16061835082956311650.52008-09-08 04:30:17
198697028912871291754.12014-11-05 12:42:46
1612809930176443691857.22015-05-28 11:53:21
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-11Luigi MorelliC3F4368D71490D094735850553
Verified
PRP without proof (not generated)
2020-04-20daveward2005C3F4368D71490D094362242753
History
DateUserTypeResult
2024-03-06Stef42NF-PM1B1=3000000, B2=53783100
2022-09-10LordJuliusNFno factor TF: 68-69
2022-09-10LordJuliusNFno factor TF: 66-67
2022-09-10LordJuliusNFno factor TF: 67-68
2022-09-10LordJuliusNFno factor TF: 64-65
2022-09-10LordJuliusNFno factor TF: 65-66
2020-04-20daveward2005C-PRPM8322557/1253993952124841/1606183508295631/19869702891287129/161280993017644369 : C3F4368D71490D09
2018-10-11Luigi MorelliC-PRPM8322557/1253993952124841/1606183508295631/19869702891287129/161280993017644369 : C3F4368D71490D09
2015-05-28TJAOIFFactor: 161280993017644369
2014-11-05TJAOIFFactor: 19869702891287129
2008-09-08Will EdgingtonFFactor: 1606183508295631