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
65537Factored
FactorDigitsBitsDate
5136680178833263581192168.8old
8838523405657871640899231720873099.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001323 / 9201
Estimated T-Level: 40.7 ⓘ
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse603F42D742C038FA2013
Verified2017-10-02kkmrkkblmbrbk603F42D742C038FA2013
Verified2017-12-07ATH603F42D742C038FA22168513
Verified2020-04-17Oliver Kruse098FDD5162147B8821752053
Verified2024-02-03Wentao Huang098FDD5162147B8824623653
History
DateUserTypeResult
2024-02-04masserNF-PP1
Start=140/53, B1=25000000, B2=1775000000
2024-02-04masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-02-03Wentao HuangC-PRP
M65537/513668017883326358119/883852340565787164089923172087 : 098FDD5162147B88
PRP: Verified
PRP without proof (small exponent)
2023-07-07Alessandro CasiniNF-PP1
Start=2/7, B1=500000000, B2=25500000000
2022-10-22George WoltmanNF-PM1
B1=1000000000, B2=92381537348100
2020-04-17Oliver KruseC-PRP
M65537/513668017883326358119/883852340565787164089923172087 : 098FDD5162147B88
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M65537/513668017883326358119/883852340565787164089923172087 : 603F42D742C038FA
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M65537/513668017883326358119/883852340565787164089923172087 : 603F42D742C038FA
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M65537/513668017883326358119/883852340565787164089923172087 : 603F42D742C038FA
PRP without proof (not generated)
2016-10-28kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12