Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
2973251
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 264
Factored
FactorDigitsBitsDate
101566254171133.2old
1574942055728711547.22014-02-27 11:29:57
70906988845756125378012272.62025-03-24 02:43:07
ECM
DigitsB1Curves
255000047 / 280
Estimated T-Level: 20.8 ⓘ
TF below 2^64 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-26Oliver Kruse64ABDCDE6FA6BDA92130654053
Factored
PRP without proof (not generated)
2017-12-09kkmrkkblmbrbk64ABDCDE6FA6BDA92290818053
Verified
Certified Good
2025-03-24Daniil Tsarkov64ABDCDE6FA6BDA938138153
History
DateUserTypeResult
2025-03-24featherCERT
Proof certified good
2025-03-24Daniil TsarkovC-PRPM2973251/10156625417/157494205572871/7090698884575612537801 : 64ABDCDE6FA6BDA9
Proof Certified Good

Proof Power: 7

2025-03-24Daniil TsarkovF-ECMFactor: 7090698884575612537801 / ECM curve 17, B1=50000, B2=86479575, Edwards Sigma=6594406263147560
2022-12-03USAFSSNF-PM1B1=320000, B2=243437040
2017-12-09kkmrkkblmbrbkC-PRPM2973251/10156625417/157494205572871 : 64ABDCDE6FA6BDA9
2017-10-26Oliver KruseC-PRPM2973251/10156625417/157494205572871 : 64ABDCDE6FA6BDA9
2014-02-27TJAOIFFactor: 157494205572871