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

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MnDetails
1553
Composite, with 5 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
141942709131133.7old
3542714704464276664392168.3old
4320765329642542176189372478.5old
676254670493712269067096453912995.8old
16933651370406827101349466192898703336117.0old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-11-16kkmrkkblmbrbkPRP_PRP_PRP_PRP_584713
History
DateUserTypeResult
2017-11-16kkmrkkblmbrbkP-PRPM1553/14194270913/354271470446427666439/432076532964254217618937/67625467049371226906709645391/169336513704068271013494661928987033
PRP Cofactor
2009-03-05-anonymous-F-ECMFactor: 169336513704068271013494661928987033
2009-03-05-anonymous-F-ECMFactor: 67625467049371226906709645391
2009-03-05-anonymous-F-ECMFactor: 432076532964254217618937
2009-03-05-anonymous-F-ECMFactor: 354271470446427666439