Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnDetails
8333579
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
157671750331765968793212373.7old
LL
StatusDateUserResidueShiftSoftware
Factored1999-11-17Charles King III86289D77BB07A8233541573Windows,Prime95,v19,(aka WV1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-12ATH8317ECE6244C29581206910253
Verified
PRP without proof (not generated)
2020-04-23oodaira8317ECE6244C29581148456453
History
DateUserTypeResult
2024-05-10Stef42NF-PM1B1=1025000, B2=1519818300
2020-04-23oodairaC-PRPM8333579/15767175033176596879321 : 8317ECE6244C2958
2018-10-12ATHC-PRPM8333579/15767175033176596879321 : 8317ECE6244C2958
2003-01-16-anonymous-F-PM1Factor: 15767175033176596879321
1999-11-17-anonymous-C-LL86289D77BB07A823
1999-03-26Robert WalkerNFno factor TF: 1-63
1998-09-27-anonymous-NFno factor TF: 1-62
1998-09-06Mark DNFno factor TF: 1-61