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
11688121Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
561029809929.1old
31298473345841974267612271.42024-06-17 19:29:02
62775432478917955860972272.42024-06-17 19:29:02
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2021-10-18NesowaC04B46F43A92584E1379771953
Verified (Factored)2021-10-20_p95holder_C04B46F43A92584E11132324453
Verified2024-06-18yuriy_5-1C04B46F43A92584E3874896153
P-1 factors
DateFactorB1B2
2024-06-1719647752002151162147417940234959685227341817262144262144
History
DateUserTypeResult
2025-06-19yuriy_5-1NF
no factor from 2^70 to 2^71
2025-04-30yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-21yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=7012872, B2=453435840
2025-02-14yuriy_5-1NF-PM1
B1=4675248, B2=604581120
2024-12-30yuriy_5-1NF-PM1
B1=1024000, B2=1901218242
2024-06-18doctor_eCERT
PRP Certification
Proof certified good
2024-06-18yuriy_5-1C-PRP
M11688121/561029809/6277543247891795586097/3129847334584197426761 : C04B46F43A92584E
PRP proof power = 8
PRP: Verified
Proof certified good
2024-06-17yuriy_5-1F-PM1
Factors: 3129847334584197426761,6277543247891795586097 / (P-1, B1=262144)
2021-10-20_p95holder_C-PRP
M11688121/561029809 : C04B46F43A92584E
PRP: Verified (Factored)
PRP without proof (not generated)
2021-10-18NesowaC-PRP
M11688121/561029809 : C04B46F43A92584E
PRP: Verified (Factored)
PRP without proof (not generated)