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
8101Factored
FactorDigitsBitsDate
712889619.4old
110722064685748161899369032683.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000008864 / 9201
Estimated T-Level: 44.8
TF below 2^144 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse849C3AFA238F04E62013
Verified2017-10-12kkmrkkblmbrbk849C3AFA238F04E62470613
Unverified2020-04-17Oliver Kruse56F6DCA88EA54F__272153
History
DateUserTypeResult
2023-09-02JacobZNF-PM1
B1=73000000000, B2=269450985774120150
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M8101/712889/11072206468574816189936903 : 56F6DCA88EA54F__
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M8101/712889/11072206468574816189936903 : 849C3AFA238F04E6
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8101/712889/11072206468574816189936903 : 849C3AFA238F04E6
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8101/712889/11072206468574816189936903 : 849C3AFA238F04E6
PRP without proof (not generated)