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:










MnStatusDetails
2061667Factored
FactorDigitsBitsDate
1512933711291237.1old
119674326549131443.42008-08-26 20:20:36
367243034825057211755.02015-01-01 11:30:16
71479794045169334784968632582.62022-07-01 18:04:33
ECM
DigitsB1Curves
2550000135 / 280
Estimated T-Level: 22.4
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver KruseCA3BAD382A07016F1013
Verified (Factored)2017-10-17Oliver Kruse65E6CF64E72D946F3168028853
Verified (Factored)2017-11-16kkmrkkblmbrbk65E6CF64E72D946F3192795553
Verified2022-07-03_p95holder_65E6CF64E72D946F4192164053
History
DateUserTypeResult
2022-07-03_p95holder_C-PRP
M2061667/151293371129/11967432654913/36724303482505721/7147979404516933478496863 : 65E6CF64E72D946F
PRP: Verified
PRP without proof (not generated)
2022-07-01_p95holder_F-ECM
Factor: 7147979404516933478496863 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-16kkmrkkblmbrbkC-PRP
M2061667/151293371129/11967432654913/36724303482505721 : 65E6CF64E72D946F
PRP: Verified
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M2061667/151293371129/11967432654913/36724303482505721 : 65E6CF64E72D946F
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2061667/151293371129/11967432654913/36724303482505721 : CA3BAD382A07016F
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-01-01TJAOIF
Factor: 36724303482505721 / TF: 55-56
2008-08-26-Anonymous-F
Factor: 11967432654913