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
14387Factored
FactorDigitsBitsDate
374063618.5old
123296510290265211753.52008-08-29 02:24:34
841238975291840057762862413772996.12008-08-26 19:58:43
2756234313473955942377204625578076709440141134.32022-01-24 15:29:42
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001264 / 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
Verified (Factored)2017-09-21Oliver KruseF1885BCE4C6048443013
Verified (Factored)2017-10-02kkmrkkblmbrbkF1885BCE4C6048443013
Verified (Factored)2017-12-07ATHF1885BCE4C604844387313
Verified (Factored)2020-04-17Oliver KruseCAA3F69216D0710C31003853
Verified2022-01-24SRJ2877CAA3F69216D0710C4329353
P-1 factors
DateFactorB1B2
2022-01-242756234313473955942377204625578076709440110000000003088390743498060
2023-11-3027562343134739559423772046255780767094401100000000000122815096988293712
History
DateUserTypeResult
2023-11-30-Anonymous-F-PM1
Factor: 27562343134739559423772046255780767094401 / (P-1, B1=100000000000, B2=122815096988293710)
2023-05-24JacobZNF-PM1
B1=7600000000, B2=30020805351537000
2022-01-24SRJ2877C-PRP
M14387/374063/12329651029026521/84123897529184005776286241377/27562343134739559423772046255780767094401 : CAA3F69216D0710C
PRP: Verified
PRP without proof (small exponent)
2022-01-24Ethan O'ConnorF-PM1
Factor: 27562343134739559423772046255780767094401 / (P-1, B1=1000000000, B2=3088390743498060)
2020-04-17Oliver KruseC-PRP
M14387/374063/12329651029026521/84123897529184005776286241377 : CAA3F69216D0710C
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M14387/374063/12329651029026521/84123897529184005776286241377 : F1885BCE4C604844
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M14387/374063/12329651029026521/84123897529184005776286241377 : F1885BCE4C604844
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14387/374063/84123897529184005776286241377/12329651029026521 : F1885BCE4C604844
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14387/374063/84123897529184005776286241377/12329651029026521 : F1885BCE4C604844
PRP without proof (not generated)
2008-08-29-Anonymous-F-PM1
Factor: 12329651029026521
2008-08-26-Anonymous-F-ECM
Factor: 84123897529184005776286241377