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

PrimeNet Exponent Status

Exponent Range:





MnDetails
4177
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
46703949055110999190016955549244353023581471945148.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000018802 / 40830
Estimated T-Level: 52.3
TF below 2^169 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver Kruse06E4BE4B93B567391013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk06E4BE4B93B567391013
Verified
No proof (small exponent)
2017-12-07ATH06E4BE4B93B567391211013
Verified
No proof (small exponent)
2020-04-17Oliver KruseFBF18D0B02D092E0160053
Verified
No proof (small exponent)
2024-02-03Wentao HuangFBF18D0B02D092E01359853
History
DateUserTypeResult
2025-05-12masserNF-PP1Start=139/59, B1=2600000000, B2=2597400000000
2024-02-03Wentao HuangC-PRPM4177/467039490551109991900169555492443530235814719 : FBF18D0B02D092E0
2023-05-18-anonymous-NF-PM1B1=77000000000, B2=774960636510330270
2020-04-17Oliver KruseC-PRPM4177/467039490551109991900169555492443530235814719 : FBF18D0B02D092E0
2017-12-07ATHC-PRPM4177/467039490551109991900169555492443530235814719 : 06E4BE4B93B56739
2017-10-02kkmrkkblmbrbkC-PRPM4177/467039490551109991900169555492443530235814719 : 06E4BE4B93B56739
2017-09-21Oliver KruseC-PRPM4177/known_factors : 06E4BE4B93B56739
2003-01-16-anonymous-NFno factor TF: 1-57
2003-01-09-anonymous-NF-PM1B1=4290000000
2002-09-22-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-08-03-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2002-06-02-anonymous-NF-PM1B1=1073741824, B2=4290000000, E=48
2001-06-30-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-06-17-anonymous-NF-PM1B1=43000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2000-08-31-anonymous-NFno factor TF: 1-56
2000-02-16-anonymous-NFno factor TF: 54-55
1999-12-23-anonymous-NFno factor TF: 53-54
1999-09-22-anonymous-NFno factor TF: 52-53