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

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MnStatusDetails
1699933Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
367185529928.5old
20691773633467748561292270.82015-12-05 10:16:23
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-02Kriesel96EF310A0286E5FF013
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertron49D80AF8A62C04C72013
Verified2017-10-18Oliver Kruse49D80AF8A62C04C7295292513
History
DateUserTypeResult
2025-09-03Carlos PinhoCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-02KrieselC-PRP
96EF310A0286E5FF
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2017-10-18Oliver KruseC-PRP
M1699933/367185529/2069177363346774856129 : 49D80AF8A62C04C7
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1699933/2069177363346774856129/367185529 : 49D80AF8A62C04C7
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-12-05Richard B. WoodsF-ECM
Factor: 2069177363346774856129