Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1810199Factored
FactorDigitsBitsDate
1448919483591237.1old
1960056495858069191857.42015-06-19 11:39:43
1576978072825645868985192477.12020-11-18 05:56:10
ECM
DigitsB1Curves
2550000280 / 280
30250000133 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-03Oliver Kruse85B87B8B9FADAAFC2013
Verified (Factored)2017-11-05kkmrkkblmbrbk85B87B8B9FADAAFC2168030713
Verified2020-11-19rbanovA1659F6BF78B34A43137364653
History
DateUserTypeResult
2020-11-19Ben DeloCERT
PRP Certification
Proof certified good
2020-11-19rbanovC-PRP
M1810199/144891948359/196005649585806919/157697807282564586898519 : A1659F6BF78B34A4
PRP proof power = 7
PRP: Verified
Proof certified good
2020-11-18_p95holder_F-ECM
Factor: 157697807282564586898519 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-05kkmrkkblmbrbkC-PRP
M1810199/144891948359/196005649585806919 : 85B87B8B9FADAAFC
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1810199/144891948359/196005649585806919 : 85B87B8B9FADAAFC
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-06-19TJAOIF
Factor: 196005649585806919 / TF: 57-58