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
1807153Factored
FactorDigitsBitsDate
756479290901316231756.1old
11310313225218827211960.02015-07-11 12:16:51
83206076854775778523992272.82020-10-16 17:35:14
155961605820823859283963772683.72021-02-12 10:30:59
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 Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-03Oliver Kruse6459C222F0D4775C2013
Verified (Factored)2017-11-05kkmrkkblmbrbk6459C222F0D4775C263818213
Verified (Factored)2020-10-17mrh44BF169277486E88328096953
Verified2021-02-12SRJ287744BF169277486E88435640053
P-1 factors
DateFactorB1B2
2015-07-11113103132252188272150000015000000
History
DateUserTypeResult
2021-02-12David RamalhoCERT
PRP Certification
Proof certified good
2021-02-12SRJ2877C-PRP
M1807153/75647929090131623/1131031322521882721/8320607685477577852399/15596160582082385928396377 : 44BF169277486E88
PRP proof power = 7
PRP: Verified
Proof certified good
2021-02-12TJAOIF-ECM
Factor: 15596160582082385928396377 / (ECM curve 147, B1=50000, B2=5000000)
2020-10-17Ben DeloCERT
PRP Certification
Proof certified good
2020-10-17mrhC-PRP
M1807153/75647929090131623/1131031322521882721/8320607685477577852399 : 44BF169277486E88
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2020-10-16nordiF-ECM
Factor: 8320607685477577852399 / (ECM curve 6, B1=50000, B2=5000000, Sigma=4617190498355847)
2017-11-05kkmrkkblmbrbkC-PRP
M1807153/75647929090131623/1131031322521882721 : 6459C222F0D4775C
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1807153/75647929090131623/1131031322521882721 : 6459C222F0D4775C
PRP: Verified (Factored)
PRP without proof (not generated)
2015-07-11alpertronF-PM1
Factor: 1131031322521882721 / (P-1, B1=500000, B2=15000000, E=12)