Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
4774877Factored
FactorDigitsBitsDate
15279606411030.5old
655017626871135.92008-09-08 00:13:02
119400640632790311753.42014-09-23 11:13:37
11127147950221037271959.92015-12-24 12:47:12
409661453070843806872065.22018-06-28 12:10:46
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-11-19kkmrkkblmbrbk5CB38B91CD0263E74276751353
Verified (Factored)2018-03-21nokno537B28C2A31C44241013
Verified (Factored)2018-04-21ATH5CB38B91CD0263E747460453
Verified2018-06-29francijezek5CB38B91CD0263E7570814753
Verified2018-07-02_p95holder_5CB38B91CD0263E75184019653
History
DateUserTypeResult
2023-10-13USAFSSNF-PM1
B1=240000, B2=89285700
2022-08-10LordJuliusNF
no factor from 2^67 to 2^68
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^64 to 2^65
2022-08-10LordJuliusNF
no factor from 2^63 to 2^64
2022-04-23J.R. AllenNF
no factor from 2^64 to 2^65
2022-04-23J.R. AllenNF
no factor from 2^63 to 2^64
2022-04-23J.R. AllenNF
no factor from 2^60 to 2^63
2018-07-02_p95holder_C-PRP
M4774877/1527960641/65501762687/11940064063279031/1112714795022103727/40966145307084380687 : 5CB38B91CD0263E7
PRP: Verified
PRP without proof (not generated)
2018-06-29francijezekC-PRP
M4774877/1527960641/65501762687/11940064063279031/1112714795022103727/40966145307084380687 : 5CB38B91CD0263E7
PRP: Verified
PRP without proof (not generated)
2018-06-28TJAOIF
Factor: 40966145307084380687 / TF: 65-66
2018-04-21ATHC-PRP
M4774877/1527960641/65501762687/11940064063279031/1112714795022103727 : 5CB38B91CD0263E7
PRP: Verified
PRP without proof (not generated)
2018-03-21noknoC-PRP
M4774877/known_factors : 537B28C2A31C4424
PRP: Verified
PRP without proof (not generated)
2017-11-19kkmrkkblmbrbkC-PRP
M4774877/1527960641/65501762687/11940064063279031/1112714795022103727 : 5CB38B91CD0263E7
PRP: Verified
PRP without proof (not generated)
2015-12-24TJAOIF
Factor: 1112714795022103727 / TF: 59-60
2014-09-23TJAOIF
Factor: 11940064063279031 / TF: 53-54
2008-09-08Will EdgingtonF
Factor: 65501762687