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
8402623
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
22182924731031.0old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-23storm5510CC8FE8A2A619D72D1370592853
Verified
PRP without proof (not generated)
2020-05-21Team_InspectorCC8FE8A2A619D72D1573825453
History
DateUserTypeResult
2024-05-12Stef42NF-PM1B1=1025000, B2=2213224650
2020-05-21Team_InspectorC-PRPM8402623/2218292473 : CC8FE8A2A619D72D
2018-10-23storm5510C-PRPM8402623/2218292473 : CC8FE8A2A619D72D