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

PrimeNet Exponent Status

Exponent Range:





MnDetails
8363581
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
50181487825.6old
36476090498905371651.72014-07-09 11:32:41
1071367401803502161112166.52020-05-13 10:26:14
2853599220551824494172168.02023-12-21 13:56:10
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2018-10-16rucioEBB94D5458233C552793833453
Factored
PRP without proof (not generated)
2020-05-06GANEBB94D5458233C552750997553
Factored
PRP without proof (not generated)
2020-05-15Luigi MorelliEBB94D5458233C553366802853
Verified
Certified Good
2023-12-22Naegi MakotoEBB94D5458233C55466575253
History
DateUserTypeResult
2024-03-07Stef42NF-PM1B1=3000000, B2=53783100
2023-12-22Jim DonovanCERT
Proof certified good
2023-12-22Naegi MakotoC-PRPM8363581/50181487/3647609049890537/107136740180350216111/285359922055182449417 : EBB94D5458233C55
Proof Certified Good

Proof Power: 8

2023-12-21TJAOIFFactor: 285359922055182449417
2020-05-15Luigi MorelliC-PRPM8363581/50181487/3647609049890537/107136740180350216111 : EBB94D5458233C55
2020-05-13TJAOIFFactor: 107136740180350216111
2020-05-06GANC-PRPM8363581/50181487/3647609049890537 : EBB94D5458233C55
2018-10-16rucioC-PRPM8363581/50181487/3647609049890537 : EBB94D5458233C55
2014-07-09TJAOIFFactor: 3647609049890537