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
2953
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
88591516.4old
48600299374999830449591705322211933108.6old
156269264417283191069889485220498190843876142254851789969547678651167219.92020-01-30 10:33:02
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000007864 / 16550
Estimated T-Level: 47.4 ⓘ
TF below 2^152 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse88ECBF494EDC42662013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbk88ECBF494EDC4266236013
Verified
No proof (small exponent)
2020-01-30Jinyuan WangB85462F6401AAFBC398653
Verified
No proof (small exponent)
2020-01-30-anonymous-B85462F6401AAFBC3211353
Verified
No proof (small exponent)
2020-02-02Luigi MorelliB85462F6401AAFBC3255253
Verified
No proof (small exponent)
2020-04-17Oliver KruseB85462F6401AAFBC3270153
History
DateUserTypeResult
2025-04-19masserNF-PP1Start=109/17, B1=3100000000, B2=3096900000000
2024-06-24masserNF-PM1B1=100000000000, B2=136077267717130740
2021-07-07ViliamFNF-PM1B1=1000000000, B2=191000000000
2020-04-17Oliver KruseC-PRPM2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC
2020-02-02Luigi MorelliC-PRPM2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC
2020-01-30-anonymous-C-PRPM2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC
2020-01-30Jinyuan WangC-PRPM2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC
2020-01-30Ryan PropperF-ECMFactor: 1562692644172831910698894852204981908438761422548517899695476786511
2017-10-12kkmrkkblmbrbkC-PRPM2953/88591/486002993749998304495917053222119 : 88ECBF494EDC4266
2017-09-21Oliver KruseC-PRPM2953/88591/486002993749998304495917053222119 : 88ECBF494EDC4266
2017-09-21Oliver KruseC-PRPM2953/88591/486002993749998304495917053222119 : 88ECBF494EDC4266