Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
14087Composite, with 5 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
22229287824.4old
20038757511030.92008-08-26 19:58:41
1927659037264146171857.42008-08-26 19:58:42
12829660123834026985742872580.12010-04-08 20:40:16
4286445706892585364440168382942647140831341135.02023-05-23 14:58:12
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001261 / 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 Kruse58F06FB695492A7F4013
Verified (Factored)2017-10-02kkmrkkblmbrbk58F06FB695492A7F4013
Verified (Factored)2017-12-07ATH58F06FB695492A7F41239213
Verified (Factored)2020-04-17Oliver Kruse800E03E8C2825C984178953
Verified2023-05-23JacobZ800E03E8C2825C9851249453
Verified2023-06-19Denial140800E03E8C2825C985708853
P-1 factors
DateFactorB1B2
2023-05-2342864457068925853644401683829426471408313780000000032022192391138948
2023-11-3042864457068925853644401683829426471408313100000000000124499752678561264
History
DateUserTypeResult
2023-11-30-Anonymous-F-PM1
Factor: 42864457068925853644401683829426471408313 / (P-1, B1=100000000000, B2=124499752678561260)
2023-06-19Denial140C-PRP
M14087/22229287/2003875751/192765903726414617/1282966012383402698574287/42864457068925853644401683829426471408313 : 800E03E8C2825C98
PRP: Verified
PRP without proof (small exponent)
2023-05-23JacobZC-PRP
M14087/22229287/2003875751/192765903726414617/1282966012383402698574287/42864457068925853644401683829426471408313 : 800E03E8C2825C98
PRP: Verified
PRP without proof (small exponent)
2023-05-23JacobZF-PM1
Factor: 42864457068925853644401683829426471408313 / (P-1, B1=7800000000, B2=32022192391138950)
2023-02-11USAFSSNF-PM1
B1=30000000, B2=2010341563230
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M14087/22229287/2003875751/192765903726414617/1282966012383402698574287 : 800E03E8C2825C98
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M14087/22229287/2003875751/192765903726414617/1282966012383402698574287 : 58F06FB695492A7F
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M14087/22229287/2003875751/192765903726414617/1282966012383402698574287 : 58F06FB695492A7F
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14087/22229287/2003875751/192765903726414617/1282966012383402698574287 : 58F06FB695492A7F
PRP without proof (not generated)
2010-04-08James HintzF-ECM
Factor: 1282966012383402698574287
2008-08-26-Anonymous-F-ECM
Factor: 192765903726414617
2008-08-26-Anonymous-F
Factor: 2003875751