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
8323963
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
1442940660845455511857.0old
3939202140681036411858.52015-09-07 11:04:31
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-11EthanD0A47FE9731A06F852616204753
Verified
PRP without proof (not generated)
2020-04-20daveward20050A47FE9731A06F852196699453
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2725257990
2020-04-20daveward2005C-PRPM8323963/144294066084545551/393920214068103641 : 0A47FE9731A06F85
2018-10-11EthanDC-PRPM8323963/144294066084545551/393920214068103641 : 0A47FE9731A06F85
2015-09-07TJAOIFFactor: 393920214068103641
1998-09-20-anonymous-FFactor: 144294066084545551