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

PrimeNet Exponent Status

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MnDetails
10515599
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
189280783927.5old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
Certified Good
2020-09-08storm5510881FE97AB99CA471184441553
History
DateUserTypeResult
2026-01-19Sid & AndyNF-PM1B1=2400000, B2=1806150060
2020-09-08Ben DeloCERT
Proof certified good
2020-09-08storm5510C-PRPM10515599/189280783 : 881FE97AB99CA471
Proof Certified Good

Proof Power: 8