Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11621503Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
82745101371032.9old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-09-21ATH489D7B6B4FDE95EF1952759053
History
DateUserTypeResult
2025-06-10yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-05yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-28yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=6972900, B2=448721460
2025-02-10yuriy_5-1NF-PM1
B1=4648600, B2=600169020
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-09-21dingmaojiaCERT
PRP Certification
Proof certified good
2021-09-21ATHC-PRP
M11621503/8274510137 : 489D7B6B4FDE95EF
PRP proof power = 8
PRP: Verified
Proof certified good