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
8320903
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
1657304360735401858507435105964932103.72012-01-13 06:18:06
LL
StatusDateUserResidueShiftSoftware
Factored1999-11-10INTERSHOP Communications534328C8B2D5DBD50Windows,Prime95,v16,NT service,(aka WS5)
Factored2002-09-22Tofer Chagnon534328C8B2D5DBD56159818Windows,Prime95,v21,(aka WX1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-14Oliver Kruse306329A9E08A34DF1249993553
Verified
PRP without proof (not generated)
2020-04-18marssystems306329A9E08A34DF1407163853
History
DateUserTypeResult
2025-01-03Stef42NF-PM1B1=1109000, B2=1520760150
2020-04-18marssystemsC-PRPM8320903/16573043607354018585074351059649 : 306329A9E08A34DF
2018-10-14Oliver KruseC-PRPM8320903/16573043607354018585074351059649 : 306329A9E08A34DF
2012-01-13kurlyF-PM1Factor: 16573043607354018585074351059649
2002-09-22tofercC-LL534328C8B2D5DBD5
2002-09-14tofercNF-PM1B1=35000, B2=271250
2002-09-14tofercNFno factor TF: 1-64
1999-11-10netconxC-LL534328C8B2D5DBD5
1998-09-27-anonymous-NFno factor TF: 1-63
1998-09-13-anonymous-NFno factor TF: 1-61