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
4177Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
46703949055110999190016955549244353023581471945148.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000018763 / 40830
Estimated T-Level: 52.3
TF below 2^169 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse06E4BE4B93B567391013
Verified2017-10-02kkmrkkblmbrbk06E4BE4B93B567391013
Verified2017-12-07ATH06E4BE4B93B567391211013
Verified2020-04-17Oliver KruseFBF18D0B02D092E0160053
Verified2024-02-03Wentao HuangFBF18D0B02D092E01359853
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M4177/467039490551109991900169555492443530235814719 : FBF18D0B02D092E0
PRP: Verified
PRP without proof (small exponent)
2023-05-18-Anonymous-NF-PM1
B1=77000000000, B2=774960636510330270
2020-04-17Oliver KruseC-PRP
M4177/467039490551109991900169555492443530235814719 : FBF18D0B02D092E0
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M4177/467039490551109991900169555492443530235814719 : 06E4BE4B93B56739
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M4177/467039490551109991900169555492443530235814719 : 06E4BE4B93B56739
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4177/known_factors : 06E4BE4B93B56739
PRP without proof (not generated)