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
867227Factored
FactorDigitsBitsDate
44006402637267234343672271.92007-09-06 05:32:57
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-28Oliver Kruse0598C3AE02212F1C1013
Verified2017-10-14Oliver Kruse0598C3AE02212F1C161465713
Verified2017-12-20ATH0598C3AE02212F1C183778313
Unverified (Reliable)2020-04-22Oliver Kruse12A00B6E850779__17707553
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^58 to 2^59
2020-04-22Oliver KruseC-PRP
M867227/4400640263726723434367 : 12A00B6E850779__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-20ATHC-PRP
M867227/4400640263726723434367 : 0598C3AE02212F1C
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M867227/4400640263726723434367 : 0598C3AE02212F1C
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M867227/4400640263726723434367 : 0598C3AE02212F1C
PRP: Unverified (Reliable)
PRP without proof (not generated)
2007-09-06Team_BunduF-ECM
Factor: 4400640263726723434367