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
9615953
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
538493369929.0old
10736384436259017291959.92015-12-22 13:04:42
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2019-10-03Niels_Mache_NextcloudA555F4D656D03DDE219742753
Verified
Certified Good
2020-12-15storm5510A555F4D656D03DDE2196004953
History
DateUserTypeResult
2025-12-09Mingye WangNF-PM1B1=1700000, B2=4870535670
2025-12-03Mingye WangNFno factor TF: 68-69
2020-12-15Ben DeloCERT
Proof certified good
2020-12-15storm5510C-PRP
Proof Certified Good

Proof Power: 8

2019-10-03Niels_Mache_NextcloudC-PRP
M9615953/538493369/1073638443625901729 : A555F4D656D03DDE
2015-12-22TJAOIFFactor: 1073638443625901729