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
4890703Factored
FactorDigitsBitsDate
7144642066585395946812169.32018-06-08 05:51:18
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2000-05-24Roger O. Schaeffer,Jr.D31BE384D0F9C8C52880746
Verified (Factored)2000-08-01Seth ChazanoffD31BE384D0F9C8C50
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-06-12Oliver Kruse1588E73A885439611292131853
Verified2018-06-13arnaud1588E73A88543961172265453
History
DateUserTypeResult
2018-06-13arnaudC-PRP
M4890703/714464206658539594681 : 1588E73A88543961
PRP: Verified
PRP without proof (not generated)
2018-06-12Oliver KruseC-PRP
M4890703/714464206658539594681 : 1588E73A88543961
PRP: Verified
PRP without proof (not generated)
2018-06-08YxinityF
Factor: 714464206658539594681 / TF: 69-70
2018-06-08YxinityNF
no factor from 2^68 to 2^69
2018-05-08ramgeisNF
no factor from 2^67 to 2^68
2017-10-31YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-22snme2pm1NF
no factor from 2^65 to 2^66
2015-01-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-01-12David CampeauNF-PM1
B1=420000, B2=10920000, E=12
2011-09-28GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-18markrNF
no factor from 2^61 to 2^62
2009-09-17Carsten KossendeyNF-PM1
B1=30000, B2=435000