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

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Exponent Range:










MnStatusDetails
16335941Factored
FactorDigitsBitsDate
22332091732228541958012270.92017-03-04 14:26:39
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-09-14Ari ÖrnA94CD88516CB5DB213945758
Verified (Factored)2006-02-15Ethan HansenA94CD88516CB5DB21891296
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-03-05Perig5E69BB2FEBE19AE711125313453
History
DateUserTypeResult
2024-03-05S00030CERT
PRP Certification
Proof certified good
2024-03-05PerigC-PRP
M16335941/2233209173222854195801 : 5E69BB2FEBE19AE7
PRP proof power = 8
PRP: Verified
Proof certified good
2024-01-26nordiNF-PM1
B1=500000, B2=256559940
2023-12-17nordiNF-PM1
B1=500000
2017-03-04XolotlF-ECM
Factor: 2233209173222854195801 / (ECM curve 1, B1=50000, B2=5000000)
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-08-18NesowaNF
no factor from 2^66 to 2^67