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
100931Factored
FactorDigitsBitsDate
118896719926.8old
7465911440503131549.42008-08-26 20:11:58
1301789398207009095612166.82008-08-26 20:11:58
5298198704283778471167672478.82011-01-03 19:18:06
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000274 / 1566
Estimated T-Level: 30.9 ⓘ
TF below 2^98 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse98CF924E87FAD3254013
Verified2017-10-09Chang Chia-Tche98CF924E87FAD3254013
Verified2017-10-13kkmrkkblmbrbk98CF924E87FAD32543200913
Verified2020-04-17Oliver Kruse392AB9DAA3BB858E4598353
Verified2022-04-15LordJulius392AB9DAA3BB858E4441153
History
DateUserTypeResult
2022-11-01LordJuliusNF
no factor from 2^65 to 2^66
2022-10-31LordJuliusNF
no factor from 2^64 to 2^65
2022-10-31LordJuliusNF
no factor from 2^63 to 2^64
2022-10-31LordJuliusNF
no factor from 2^62 to 2^63
2022-04-15LordJuliusC-PRP
M100931/118896719/746591144050313/130178939820700909561/529819870428377847116767 : 392AB9DAA3BB858E
PRP: Verified
PRP without proof (small exponent)
2022-04-13LordJuliusNF
no factor from 2^61 to 2^62
2022-04-13LordJuliusNF
no factor from 2^60 to 2^61
2022-04-13LordJuliusNF
no factor from 2^59 to 2^60
2022-04-13LordJuliusNF
no factor from 2^58 to 2^59
2022-04-13LordJuliusNF
no factor from 2^57 to 2^58
2021-12-17Seth_TrNF-PM1
B1=1000000000, B2=6734439121410
2020-04-17Oliver KruseC-PRP
M100931/118896719/746591144050313/130178939820700909561/529819870428377847116767 : 392AB9DAA3BB858E
PRP: Verified
PRP without proof (small exponent)
2018-11-01J.R. AllenNF
no factor from 2^59 to 2^60
2018-11-01J.R. AllenNF
no factor from 2^58 to 2^59
2018-11-01J.R. AllenNF
no factor from 2^57 to 2^58
2018-11-01J.R. AllenNF
no factor from 2^52 to 2^57
2017-10-13kkmrkkblmbrbkC-PRP
M100931/118896719/746591144050313/130178939820700909561/529819870428377847116767 : 98CF924E87FAD325
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M100931/known_factors : 98CF924E87FAD325
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M100931/118896719/746591144050313/130178939820700909561/529819870428377847116767 : 98CF924E87FAD325
PRP without proof (not generated)
2016-10-31kkmrkkblmbrbkNF-PM1
B1=200000000, B2=5000000000, E=12
2011-01-03Rob_DeeF-ECM
Factor: 529819870428377847116767
2008-08-26-Anonymous-F-ECM
Factor: 130178939820700909561
2008-08-26-Anonymous-F-PM1
Factor: 746591144050313