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

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Exponent Range:










MnStatusDetails
7720697Factored
FactorDigitsBitsDate
6306880610058694879912169.12018-06-27 05:03:24
ECM
DigitsB1Curves
25500004 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-07-27Alan Vidmar529CD6160E9E30A70
Verified (Factored)2003-02-09Marcelo Marcos Ribeiro529CD6160E9E30A7821614
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2018-06-27ATHBE07520F58EBFFFF1571045753
Verified2019-09-06kkmrkkblmbrbkBE07520F58EBFFFF1561662553
History
DateUserTypeResult
2019-09-06kkmrkkblmbrbkC-PRP
M7720697/630688061005869487991 : BE07520F58EBFFFF
PRP: Verified
PRP without proof (not generated)
2018-06-27ATHC-PRP
M7720697/630688061005869487991 : BE07520F58EBFFFF
PRP: Verified
PRP without proof (not generated)
2018-06-27alan145F-ECM
Factor: 630688061005869487991 / (ECM curve 1, B1=50000, B2=5000000)
2016-09-04Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-03VictordeHollanderNF
no factor from 2^65 to 2^66
2013-12-17David CampeauNF
no factor from 2^64 to 2^65
2013-10-07NesowaNF
no factor from 2^63 to 2^64
2012-08-13NesowaNF-PM1
B1=95000, B2=1781250, E=6