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
8321507
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
5300633528871238.9old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-08rucioC1ACB5B56B5F0C4A125373753
Verified
PRP without proof (not generated)
2020-05-09Luigi MorelliC1ACB5B56B5F0C4A1829063353
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2788626750
2020-05-09Luigi MorelliC-PRPM8321507/530063352887 : C1ACB5B56B5F0C4A
2018-10-08rucioC-PRPM8321507/530063352887 : C1ACB5B56B5F0C4A