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:










MnStatusDetails
1633609Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
10161047991029.9old
18917192231030.82008-07-15 07:44:36
455940271911135.42008-07-15 07:44:36
133386546646335799713592373.52017-12-11 09:38:17
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)2025-09-02KrieselA57C08F3A01ACC24013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-02Oliver KruseAAB23916DA349F0B3013
Verified (Factored)2017-11-02kkmrkkblmbrbkAAB23916DA349F0B399845913
Verified2017-12-11ATHA57C08F3A01ACC24482993653
Verified2017-12-11kkmrkkblmbrbkA57C08F3A01ACC24484265053
History
DateUserTypeResult
2025-09-03Carlos PinhoCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-02KrieselC-PRP
A57C08F3A01ACC24
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2017-12-11kkmrkkblmbrbkC-PRP
M1633609/1016104799/1891719223/45594027191/13338654664633579971359 : A57C08F3A01ACC24
PRP: Verified
PRP without proof (not generated)
2017-12-11ATHC-PRP
M1633609/1016104799/1891719223/45594027191/13338654664633579971359 : A57C08F3A01ACC24
PRP: Verified
PRP without proof (not generated)
2017-12-11Gordon SpenceF-ECM
Factor: 13338654664633579971359 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-02kkmrkkblmbrbkC-PRP
M1633609/1016104799/1891719223/45594027191 : AAB23916DA349F0B
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1633609/1016104799/1891719223/45594027191 : AAB23916DA349F0B
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-15J FeitsmaF
Factor: 45594027191
2008-07-15J FeitsmaF
Factor: 1891719223