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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Exponent Range:










MnStatusDetails
3155429Factored
FactorDigitsBitsDate
2388785970171237.8old
10568771436012280784207992579.82021-01-06 11:50:15
121319657716832172498061272683.32021-11-10 02:31:36
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-31Oliver KruseF1329EEB2120F0011306016653
Verified (Factored)2017-12-12kkmrkkblmbrbkF1329EEB2120F0011223387053
Verified (Factored)2021-01-07seatseaF1329EEB2120F0012200458853
Verified2021-11-10SRJ2877F1329EEB2120F0013106394353
P-1 factors
DateFactorB1B2
2021-01-0610568771436012280784207993155423155429
2021-11-10121319657716832172498061273155429731085
History
DateUserTypeResult
2022-10-06JossNF-PM1
B1=3155429, B2=445841550
2022-03-24LordJuliusNF
no factor from 2^66 to 2^67
2022-03-24LordJuliusNF
no factor from 2^65 to 2^66
2022-01-19JossNF-PM1
B1=3155429, B2=339011400
2021-12-20JossNF-PM1
B1=3155429, B2=116689650
2021-11-10Jorge CoveiroCERT
PRP Certification
Proof certified good
2021-11-10SRJ2877C-PRP
M3155429/238878597017/1056877143601228078420799/12131965771683217249806127 : F1329EEB2120F001
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-10JossF-PM1
Factor: 12131965771683217249806127 / (P-1, B1=3155429, B2=731085, E=12)
2021-09-24JossNF
no factor from 2^67 to 2^68
2021-01-10JossNF
no factor from 2^64 to 2^65
2021-01-07ky0urakuCERT
PRP Certification
Proof certified good
2021-01-07seatseaC-PRP
M3155429/238878597017/1056877143601228078420799 : F1329EEB2120F001
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2021-01-06JossNF
no factor from 2^63 to 2^64
2021-01-06JossF-PM1
Factor: 1056877143601228078420799 / (P-1, B1=315542, B2=3155429, E=6)
2021-01-05JossNF
no factor from 2^62 to 2^63
2021-01-04JossNF
no factor from 2^61 to 2^62
2021-01-04JossNF-PM1
B1=315542
2021-01-04JossNF
no factor from 2^60 to 2^61
2021-01-02JossNF-PM1
B1=157771
2017-12-12kkmrkkblmbrbkC-PRP
M3155429/238878597017 : F1329EEB2120F001
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-31Oliver KruseC-PRP
M3155429/238878597017 : F1329EEB2120F001
PRP: Verified (Factored)
PRP without proof (not generated)