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
20479Factored
FactorDigitsBitsDate
2948977721.5old
180092327927.42008-08-26 19:58:59
710908007929.42008-08-26 19:59:00
260142689111134.62008-08-26 19:59:00
6868935901072523991859.32008-08-26 19:59:00
62946606779163491470812272.42009-06-03 01:40:45
3101384326598759101498717689533098.02009-06-27 07:03:15
1212468317243019071049840547061888935113.22018-04-28 14:13:00
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000007177 / 9201
Estimated T-Level: 43.9
TF below 2^141 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse2F0E51A751B424F37013
Verified (Factored)2017-10-02kkmrkkblmbrbk2F0E51A751B424F37013
Verified (Factored)2017-12-07ATH2F0E51A751B424F371645813
Verified2018-04-29ANONYMOUSBDADF3F9306DF69081329453
Verified2018-05-02MiRoBDADF3F9306DF69081910653
P-1 factors
DateFactorB1B2
2022-04-0629489771000000000100475912316780
2022-04-09294897710000000001000502794541250
History
DateUserTypeResult
2022-06-17LordJuliusNF
no factor from 2^61 to 2^62
2022-06-17LordJuliusNF
no factor from 2^60 to 2^61
2022-06-17LordJuliusNF
no factor from 2^61 to 2^62
2022-06-17LordJuliusNF
no factor from 2^60 to 2^61
2022-06-17LordJuliusNF
no factor from 2^58 to 2^59
2022-06-17LordJuliusNF
no factor from 2^57 to 2^58
2022-06-17LordJuliusNF
no factor from 2^55 to 2^56
2022-06-17LordJuliusNF
no factor from 2^54 to 2^55
2022-06-17LordJuliusNF
no factor from 2^53 to 2^54
2022-06-17LordJuliusNF
no factor from 2^52 to 2^53
2022-06-17LordJuliusNF
no factor from 2^51 to 2^52
2022-04-09JossF-PM1
Factor: 42467179084315576577619872585381081414662879082713040951579660154487563977 / (P-1, B1=1000000000, B2=1000502794541250)
2022-04-06JossF-PM1
Factor: 42467179084315576577619872585381081414662879082713040951579660154487563977 / (P-1, B1=1000000000, B2=100475912316780)
2021-12-10nordiNF-PM1
B1=5000000000, B2=30139400040750
2021-10-14nordiNF-PP1
Start=6/5, B1=2000000000, B2=20000000000
2021-10-14nordiNF-PP1
Start=2/7, B1=2000000000, B2=20000000000
2018-05-02MiRoC-PRP
M20479/2948977/180092327/710908007/26014268911/686893590107252399/6294660677916349147081/310138432659875910149871768953/12124683172430190710498405470618889 : BDADF3F9306DF690
PRP: Verified
PRP without proof (small exponent)
2018-04-29ANONYMOUSC-PRP
M20479/2948977/180092327/710908007/26014268911/686893590107252399/6294660677916349147081/310138432659875910149871768953/12124683172430190710498405470618889 : BDADF3F9306DF690
PRP: Verified
PRP without proof (small exponent)
2018-04-28nordiF-ECM
Factor: 12124683172430190710498405470618889 / (ECM curve 241, B1=3000000, B2=300000000)
2017-12-07ATHC-PRP
M20479/2948977/180092327/710908007/26014268911/686893590107252399/6294660677916349147081/310138432659875910149871768953 : 2F0E51A751B424F3
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M20479/2948977/180092327/710908007/26014268911/686893590107252399/6294660677916349147081/310138432659875910149871768953 : 2F0E51A751B424F3
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M20479/2948977/180092327/710908007/26014268911/686893590107252399/6294660677916349147081/310138432659875910149871768953 : 2F0E51A751B424F3
PRP without proof (not generated)
2016-11-12kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12
2009-06-27Rob_DeeF-ECM
Factor: 310138432659875910149871768953
2009-06-03-Anonymous-F-ECM
Factor: 6294660677916349147081
2008-08-26-Anonymous-F-ECM
Factor: 686893590107252399
2008-08-26-Anonymous-F
Factor: 26014268911
2008-08-26-Anonymous-F
Factor: 710908007
2008-08-26-Anonymous-F
Factor: 180092327