Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
263
Composite, with 3 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
23671514.5old
135722645291771443.6old
1202263605368484980240359432786.6old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2018-01-24_p95holder_PRP_PRP_PRP_PRP_3013
History
DateUserTypeResult
2018-01-24_p95holder_P-PRPM263/23671/13572264529177/120226360536848498024035943
PRP Cofactor