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:





MnDetails
5477
Composite, with 6 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
2062528364638534811857.5old
31993450981666521138972271.4old
1147839106856690475324667068413096.5old
663652752254157671732455334929129786983313956746152.22020-10-13 12:10:34
14461933122954624150239780251792040345135134768748156.72020-10-07 01:35:36
94446068448914233302128361493603395405261669835948159.42021-04-05 01:43:41
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000013608 / 16550
Estimated T-Level: 49.1 ⓘ
TF below 2^158 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver KruseDE09DB183FC696C93013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbkDE09DB183FC696C93013
Factored
No proof (small exponent)
2017-12-07ATHDE09DB183FC696C93305213
Factored
No proof (small exponent)
2020-04-17Oliver Kruse886704DC892AEE44387953
Factored
No proof (small exponent)
2020-10-07M Miller886704DC892AEE444281253
Factored
No proof (small exponent)
2020-10-07mnd9886704DC892AEE444355753
Factored
No proof (small exponent)
2020-10-13ATH886704DC892AEE445146253
Verified
No proof (small exponent)
2021-04-05mikr886704DC892AEE4466853
Verified
No proof (small exponent)
2021-04-06Joe S.886704DC892AEE44614253
History
DateUserTypeResult
2025-05-09masserNF-PP1Start=144/67, B1=2100000000, B2=2097900000000
2023-07-11-anonymous-NF-PM1B1=46000000000, B2=193133522175293700
2022-01-24Ethan O'ConnorNF-PM1B1=1300000000
2021-08-27Seth_TrNF-PM1B1=400000000
2021-04-06Joe S.C-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841/144619331229546241502397802517920403451351347687/6636527522541576717324553349291297869833139567/944460684489142333021283614936033954052616698359 : 886704DC892AEE44
2021-04-05mikrC-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841/6636527522541576717324553349291297869833139567/144619331229546241502397802517920403451351347687/944460684489142333021283614936033954052616698359 : 886704DC892AEE44
2021-04-05Ryan PropperF-ECMFactor: 944460684489142333021283614936033954052616698359
2020-10-13ATHC-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841/144619331229546241502397802517920403451351347687/6636527522541576717324553349291297869833139567 : 886704DC892AEE44
2020-10-13Ryan PropperF-ECMFactor: 6636527522541576717324553349291297869833139567
2020-10-07mnd9C-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841/144619331229546241502397802517920403451351347687 : 886704DC892AEE44
2020-10-07M MillerC-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841/144619331229546241502397802517920403451351347687 : 886704DC892AEE44
2020-10-07Ryan PropperF-ECMFactor: 144619331229546241502397802517920403451351347687
2020-04-17Oliver KruseC-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841 : 886704DC892AEE44
2017-12-07ATHC-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841 : DE09DB183FC696C9
2017-10-02kkmrkkblmbrbkC-PRPM5477/206252836463853481/3199345098166652113897/114783910685669047532466706841 : DE09DB183FC696C9
2017-09-21Oliver KruseC-PRPM5477/known_factors : DE09DB183FC696C9