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

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MnDetails
173
Composite, with 3 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
730753619.5old
1505447720.5old
700844367125532231756.0old
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-PRPM173/730753/1505447/70084436712553223
PRP Cofactor