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
14939Factored
FactorDigitsBitsDate
29879514.9old
8276207723.02008-08-26 19:58:44
15607072091030.52008-08-26 19:58:44
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001275 / 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 Kruse9DFF8E875FFF403E3013
Verified2017-10-12kkmrkkblmbrbk9DFF8E875FFF403E3102913
Unverified2020-04-17Oliver Kruse163542F2F93A88__3979053
Verified (Factored)2022-05-12Jorge Coveiro163542F2F93A885311364353
P-1 factors
DateFactorB1B2
2022-02-18298791000000000010000000000
History
DateUserTypeResult
2022-05-12Jorge CoveiroC-PRP
M14939/29879 : 163542F2F93A8853
PRP: Verified (Factored)
PRP without proof (small exponent)
2022-02-18Ethan O'ConnorNF-PM1
B1=10000000000, B2=91247729511548610
2022-02-18Ethan O'ConnorF-PM1
Factor: 385939152794990662177 / (P-1, B1=10000000000)
2022-01-26Ethan O'ConnorNF-PM1
B1=10000000000, B2=51492389653234530
2020-04-17Oliver KruseC-PRP
M14939/29879/8276207/1560707209 : 163542F2F93A8853
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14939/29879/8276207/1560707209 : 9DFF8E875FFF403E
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14939/29879/8276207/1560707209 : 9DFF8E875FFF403E
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14939/29879/8276207/1560707209 : 9DFF8E875FFF403E
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 1560707209
2008-08-26-Anonymous-F
Factor: 8276207