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

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MnStatusDetails
1021Composite, with 4 known prime factors. Cofactor is PRP (Probable-Prime).
Factored
FactorDigitsBitsDate
40841515.3old
795808241929.6old
517319683082571445.6old
186601380386773831685654808589407572979935121650349160.4old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2024-09-06George WoltmanPRP_PRP_PRP_PRP_463213
History
DateUserTypeResult
2024-09-06George WoltmanP-PRP
M1021/40841/795808241/51731968308257/1866013803867738316856548085894075729799351216503 is a probable prime.