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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MnStatusDetails
8803657Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
69548890311032.7old
14219636488787179857654012580.22024-09-10 07:33:08
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2019-01-30artorollo977B97BF269555371860953553
Verified (Factored)2020-09-10daveward2005977B97BF269555371776105853
Verified2024-09-15Feritin977B97BF269555372463652853
P-1 factors
DateFactorB1B2
2024-09-10142196364887871798576540117000003174397380
History
DateUserTypeResult
2024-09-15Luke DurantCERT
PRP Certification
Proof certified good
2024-09-15FeritinC-PRP
M8803657/6954889031/1421963648878717985765401 : 977B97BF26955537
PRP proof power = 8
PRP: Verified
Proof certified good
2024-09-10Stef42F-PM1
Factor: 1421963648878717985765401 / (P-1, B1=1700000, B2=3174397380)
2020-09-10daveward2005C-PRP
M8803657/6954889031 : 977B97BF26955537
PRP: Verified (Factored)
PRP without proof (not generated)
2019-01-30artorolloC-PRP
M8803657/6954889031 : 977B97BF26955537
PRP: Verified (Factored)
PRP without proof (not generated)