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
10601Factored
FactorDigitsBitsDate
39801030471031.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000007000 / 9201
Estimated T-Level: 43.8
TF below 2^141 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse7A5B2CF6E49E0AAF1013
Verified2017-10-12kkmrkkblmbrbk7A5B2CF6E49E0AAF1650413
Unverified2020-04-17Oliver Kruse76D2E0F07A4CED__1991753
History
DateUserTypeResult
2022-11-09-Anonymous-NF-PM1
B1=100000000000, B2=120443211520241610
2021-03-04ViliamFNF-PM1
B1=1000000000, B2=211000000000
2020-04-17Oliver KruseC-PRP
M10601/3980103047 : 76D2E0F07A4CED__
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10601/3980103047 : 7A5B2CF6E49E0AAF
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10601/3980103047 : 7A5B2CF6E49E0AAF
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10601/3980103047 : 7A5B2CF6E49E0AAF
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12