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
162493Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
974959619.9old
120894793926.82008-07-27 10:49:17
165050639831133.92008-07-27 10:49:17
40167228822702414971961.82008-08-26 20:12:39
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000166 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseF6640E92771DB3504013
Verified2017-10-11kkmrkkblmbrbkF6640E92771DB350411155613
Verified2020-04-17Oliver Kruse98A35611B141467F4694153
Verified2024-02-03Wentao Huang98A35611B141467F411094053
History
DateUserTypeResult
2024-02-03curtiscCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M162493/974959/120894793/16505063983/4016722882270241497 : 98A35611B141467F
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M162493/974959/120894793/16505063983/4016722882270241497 : 98A35611B141467F
PRP: Verified
PRP without proof (small exponent)
2017-10-11kkmrkkblmbrbkC-PRP
M162493/974959/120894793/16505063983/4016722882270241497 : F6640E92771DB350
PRP: Verified
PRP without proof (small exponent)
2017-09-21Oliver KruseC-PRP
M162493/974959/120894793/16505063983/4016722882270241497 : F6640E92771DB350
PRP without proof (not generated)
2017-04-23kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F-ECM
Factor: 4016722882270241497
2008-07-27J FeitsmaF
Factor: 16505063983
2008-07-27J FeitsmaF
Factor: 120894793