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
10181Factored
FactorDigitsBitsDate
488689618.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001282 / 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 Kruse36EBBBA8FCBCA2FD1013
Verified2017-10-12kkmrkkblmbrbk36EBBBA8FCBCA2FD1736813
Unverified2020-04-17Oliver KruseF97DEA14E31DA4__11017653
History
DateUserTypeResult
2022-10-10-Anonymous-NF-PM1
B1=100000000000, B2=121570702234581600
2021-08-01ViliamFNF-PM1
B1=250000000, B2=40250000000
2020-04-17Oliver KruseC-PRP
M10181/488689 : F97DEA14E31DA4__
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10181/488689 : 36EBBBA8FCBCA2FD
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10181/488689 : 36EBBBA8FCBCA2FD
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10181/488689 : 36EBBBA8FCBCA2FD
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12