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
2070931Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
20750728631031.0old
572291974398796293432065.62018-01-01 22:33:36
ECM
DigitsB1Curves
2550000280 / 280
30250000165 / 640
Estimated T-Level: 26.3
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver KruseCA7C6C3510EA12D71013
Verified (Factored)2017-11-16kkmrkkblmbrbkCA7C6C3510EA12D71198310313
Verified2018-01-04ATH653BB9695F1CB4292131561213
Verified2018-01-05Oliver KruseD93C77285C6D674A2173690153
Verified2018-01-05kkmrkkblmbrbkD93C77285C6D674A22031453
Verified2018-01-05kkmrkkblmbrbk653BB9695F1CB429285992513
Verified2018-01-07nokno653BB9695F1CB4292013
History
DateUserTypeResult
2018-01-07noknoC-PRP
M2070931/2075072863/57229197439879629343 : 653BB9695F1CB429
PRP: Verified
PRP without proof (not generated)
2018-01-05kkmrkkblmbrbkC-PRP
M2070931/2075072863/57229197439879629343 : 653BB9695F1CB429
PRP: Verified
PRP without proof (not generated)
2018-01-05kkmrkkblmbrbkC-PRP
M2070931/2075072863/57229197439879629343 : D93C77285C6D674A
PRP: Verified
PRP without proof (not generated)
2018-01-05Oliver KruseC-PRP
M2070931/2075072863/57229197439879629343 : D93C77285C6D674A
PRP: Verified
PRP without proof (not generated)
2018-01-04ATHC-PRP
M2070931/2075072863/57229197439879629343 : 653BB9695F1CB429
PRP: Verified
PRP without proof (not generated)
2018-01-01Gordon SpenceF-ECM
Factor: 57229197439879629343 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-16kkmrkkblmbrbkC-PRP
M2070931/2075072863 : CA7C6C3510EA12D7
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2070931/2075072863 : CA7C6C3510EA12D7
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12