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
541831Factored
FactorDigitsBitsDate
4679161312182533639292168.72010-06-05 03:34:27
902942903524909504627072092686.22018-07-27 12:39:28
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski2D1C0
Verified (Factored)Charles F. Kerchner III6D3F0DE41C87AD1C0
Verified (Factored)Klaus Kastens6D3F0DE41C87AD1C65116
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-27Oliver Kruse5BCC6DB4E9374DDD1013
Verified (Factored)2017-09-28Oliver Kruse5BCC6DB4E9374DDD1013
Verified (Factored)2017-11-07kkmrkkblmbrbk5BCC6DB4E9374DDD147227313
Verified2018-07-28ANONYMOUSC90BE7AA892E0A1028923953
Verified2018-07-30_p95holder_C90BE7AA892E0A10251460653
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-08-23ViliamFNF-PM1
B1=15000000, B2=1740000000
2018-07-30_p95holder_C-PRP
M541831/467916131218253363929/90294290352490950462707209 : C90BE7AA892E0A10
PRP: Verified
PRP without proof (small exponent)
2018-07-28ANONYMOUSC-PRP
M541831/467916131218253363929/90294290352490950462707209 : C90BE7AA892E0A10
PRP: Verified
PRP without proof (small exponent)
2018-07-27TJAOIF-ECM
Factor: 90294290352490950462707209 / (ECM curve 32, B1=250000, B2=25000000)
2017-11-07kkmrkkblmbrbkC-PRP
M541831/467916131218253363929 : 5BCC6DB4E9374DDD
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M541831/467916131218253363929 : 5BCC6DB4E9374DDD
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M541831/467916131218253363929 : 5BCC6DB4E9374DDD
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=1500000, B2=50000000, E=12
2010-06-05Sturle SundeF-ECM
Factor: 467916131218253363929