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

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MnDetails
1193
Composite, with 2 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
121687616.9old
85227326201314361823893776605433636670217425388311906457714409016049961507516230416822145599757462472729104345.22014-08-26 07:47:20
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_283513
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM1193/121687/85227326201314361823893776605433636670217425388311906457714409016049961507516230416822145599757462472729
PRP Cofactor
2014-08-26-anonymous-F-ECMFactor: 85227326201314361823893776605433636670217425388311906457714409016049961507516230416822145599757462472729