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
8323831
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
123192698811133.5old
12167443202571340.12008-09-08 04:30:29
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-10Chang Chia-Tche766B6CAC668060292417125053
Verified
PRP without proof (not generated)
2020-04-18ATH766B6CAC668060292461198753
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2788626750
2020-04-18ATHC-PRPM8323831/12319269881/1216744320257 : 766B6CAC66806029
2018-10-10Chang Chia-TcheC-PRPM8323831/12319269881/1216744320257 : 766B6CAC66806029
2008-09-08Will EdgingtonFFactor: 1216744320257