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

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MnDetails
1091
Composite, with 5 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
87281516.4old
551978359929.0old
7913435855958171549.5old
9753513036465367353542211347120701735116.2old
49647400053722556689931093439333082509752283945148.5old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_542213
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM1091/87281/551978359/791343585595817/97535130364653673535422113471207017/496474000537225566899310934393330825097522839
PRP Cofactor
2005-03-20-anonymous-FFactor: 791343585595817
2005-03-20-anonymous-FFactor: 48177223151879
2005-03-20-anonymous-FFactor: 69069259494388503577
2005-03-20-anonymous-F-ECMFactor: 97535130364653673535422113471207017
2005-02-18-anonymous-FFactor: 48177223151879
2005-02-18-anonymous-F-PM1Factor: 791343585595817
2005-02-18-anonymous-FFactor: 48177223151879
2005-02-18-anonymous-FFactor: 69069259494388503577
2005-02-18-anonymous-F-PM1Factor: 791343585595817
2005-02-18-anonymous-F-PM1Factor: 38124736513057735912898090143
2005-02-12-anonymous-FFactor: 791343585595817
2005-02-12-anonymous-FFactor: 48177223151879
2005-02-12-anonymous-F-ECMFactor: 97535130364653673535422113471207017
2005-02-12-anonymous-F-PM1Factor: 38124736513057735912898090143
2005-02-12-anonymous-F-PM1Factor: 436804533782355104924303
2000-08-01-anonymous-FFactor: 48177223151879