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:





MnDetails
14387
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
374063618.5old
123296510290265211753.52008-08-29 02:24:34
841238975291840057762862413772996.12008-08-26 19:58:43
2756234313473955942377204625578076709440141134.32022-01-24 15:29:42
P-1 factors
DateFactorsB1B2
2023-11-30No new factors discovered100000000000122815096988293712
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001425 / 9201
Estimated T-Level: 40.8 ⓘ
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver KruseF1885BCE4C6048443013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbkF1885BCE4C6048443013
Factored
No proof (small exponent)
2017-12-07ATHF1885BCE4C604844387313
Factored
No proof (small exponent)
2020-04-17Oliver KruseCAA3F69216D0710C31003853
Verified
No proof (small exponent)
2022-01-24SRJ2877CAA3F69216D0710C4329353
History
DateUserTypeResult
2025-02-14masserNF-PP1Start=105/19, B1=355000000, B2=354645000000
2025-02-07masserNF-PP1Start=2/7, B1=355000000, B2=354645000000
2025-01-19masserNF-PP1Start=6/5, B1=355000000, B2=354645000000
2023-11-30-anonymous-F-PM1Factor: 27562343134739559423772046255780767094401 / B1=100000000000, B2=122815096988293710
2023-05-24JacobZNF-PM1B1=7600000000, B2=30020805351537000
2022-01-24SRJ2877C-PRPM14387/374063/12329651029026521/84123897529184005776286241377/27562343134739559423772046255780767094401 : CAA3F69216D0710C
2022-01-24Ethan O'ConnorF-PM1Factor: 27562343134739559423772046255780767094401 / B1=1000000000, B2=3088390743498060
2020-04-17Oliver KruseC-PRPM14387/374063/12329651029026521/84123897529184005776286241377 : CAA3F69216D0710C
2017-12-07ATHC-PRPM14387/374063/12329651029026521/84123897529184005776286241377 : F1885BCE4C604844
2017-10-02kkmrkkblmbrbkC-PRPM14387/374063/12329651029026521/84123897529184005776286241377 : F1885BCE4C604844
2017-09-21Oliver KruseC-PRPM14387/374063/84123897529184005776286241377/12329651029026521 : F1885BCE4C604844
2017-09-21Oliver KruseC-PRPM14387/374063/84123897529184005776286241377/12329651029026521 : F1885BCE4C604844
2008-08-29-anonymous-F-PM1Factor: 12329651029026521
2008-08-26-anonymous-F-ECMFactor: 84123897529184005776286241377