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

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MnDetails
1123
Composite, with 2 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
7772884352619899691859.4old
4321749374426178250912405171712520218348595194236252887069688897875722874342146988228786284.52014-12-23 16:37:33
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_263213
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM1123/777288435261989969/43217493744261782509124051717125202183485951942362528870696888978757228743421469882287
PRP Cofactor