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
366517Factored
FactorDigitsBitsDate
26326878077058694491961.22007-08-28 17:27:48
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.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-23Oliver KruseF024E92C5ACA2CA41013
Verified2017-09-24Oliver KruseF024E92C5ACA2CA41013
Verified2017-11-07kkmrkkblmbrbkF024E92C5ACA2CA4132950213
Unverified (Reliable)2020-04-18Oliver Kruse369309049034DB__135365653
History
DateUserTypeResult
2024-02-16Denial140NF-PM1
B1=1000000, B2=8403510570
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M366517/2632687807705869449 : 369309049034DB__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M366517/2632687807705869449 : F024E92C5ACA2CA4
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M366517/2632687807705869449 : F024E92C5ACA2CA4
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-23Oliver KruseC-PRP
M366517/2632687807705869449 : F024E92C5ACA2CA4
PRP: Unverified (Reliable)
PRP without proof (not generated)
2007-08-28Chad DavisF-ECM
Factor: 2632687807705869449