Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
92203Factored
FactorDigitsBitsDate
6638617722.7old
32639863825.02008-08-26 20:11:39
10808035671030.02008-08-26 20:11:39
467839749884231445.42008-08-26 20:11:39
476107886099771445.42008-08-26 20:11:39
499854419226627611755.52008-08-26 20:11:39
7616182760490881136145582017676132105.92021-04-16 18:35:42
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000002297 / 4588
Estimated T-Level: 37.5 ⓘ
TF below 2^120 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse411F0D4A1CF9A2076013
Verified (Factored)2017-10-02kkmrkkblmbrbk411F0D4A1CF9A2076013
Verified (Factored)2017-12-07ATH411F0D4A1CF9A20766068513
Verified (Factored)2020-04-17Oliver Kruse97CAEE62E3B73C7D64310353
Verified2021-04-16Seth_Tr97CAEE62E3B73C7D76826453
P-1 factors
DateFactorB1B2
2021-04-167616182760490881136145582017676140000000076400000000
History
DateUserTypeResult
2022-07-20George WoltmanNF-PM1
B1=1000000000, B2=73738311997350
2021-04-29nordiNF-PP1
Start=6/5, B1=40000000, B2=5240000000
2021-04-25nordiNF-PP1
Start=2/7, B1=40000000, B2=5240000000
2021-04-16Seth_TrC-PRP
M92203/6638617/32639863/1080803567/46783974988423/47610788609977/49985441922662761/76161827604908811361455820176761 : 97CAEE62E3B73C7D
PRP: Verified
PRP without proof (small exponent)
2021-04-16Seth_TrF-PM1
Factor: 76161827604908811361455820176761 / (P-1, B1=400000000, B2=76400000000)
2020-04-17Oliver KruseC-PRP
M92203/6638617/32639863/1080803567/46783974988423/47610788609977/49985441922662761 : 97CAEE62E3B73C7D
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M92203/6638617/32639863/1080803567/46783974988423/47610788609977/49985441922662761 : 411F0D4A1CF9A207
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M92203/6638617/32639863/1080803567/46783974988423/47610788609977/49985441922662761 : 411F0D4A1CF9A207
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M92203/known_factors : 411F0D4A1CF9A207
PRP without proof (not generated)
2016-12-17kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F-ECM
Factor: 49985441922662761
2008-08-26-Anonymous-F
Factor: 47610788609977
2008-08-26-Anonymous-F
Factor: 46783974988423
2008-08-26-Anonymous-F
Factor: 1080803567
2008-08-26-Anonymous-F
Factor: 32639863