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
9883Factored
FactorDigitsBitsDate
158129617.3old
10436449823.3old
212582737031134.3old
17530187135419775291960.6old
7409581004827166773612169.3old
5277760433632742155911716797717366335115.3old
45082638753559154678920194337520660290339128.42018-06-24 09:14:39
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000005178 / 16550
Estimated T-Level: 46.6
TF below 2^150 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse7BCCA155FC7EDA586013
Verified (Factored)2017-10-02kkmrkkblmbrbk7BCCA155FC7EDA586013
Verified (Factored)2017-12-07ATH7BCCA155FC7EDA58645813
Verified2018-06-24axn78D2D95A7F0F6F767873353
Verified2018-06-24francijezek78D2D95A7F0F6F76747153
Verified2018-06-24francijezek78D2D95A7F0F6F767615853
Verified2018-06-25arnaud78D2D95A7F0F6F767501653
History
DateUserTypeResult
2023-06-12JacobZNF-PM1
B1=58000000000, B2=241250667952694400
2022-11-25Kevin_9611NF-PM1
B1=1000000000, B2=100294988083290
2021-08-27Seth_TrNF-PM1
B1=400000000
2018-06-25arnaudC-PRP
M9883/158129/10436449/21258273703/1753018713541977529/740958100482716677361/52777604336327421559117167977173663/450826387535591546789201943375206602903 : 78D2D95A7F0F6F76
PRP: Verified
PRP without proof (small exponent)
2018-06-24francijezekC-PRP
M9883/158129/10436449/21258273703/1753018713541977529/740958100482716677361/52777604336327421559117167977173663/450826387535591546789201943375206602903 : 78D2D95A7F0F6F76
PRP: Verified
PRP without proof (small exponent)
2018-06-24francijezekC-PRP
M9883/158129/10436449/21258273703/1753018713541977529/740958100482716677361/52777604336327421559117167977173663/450826387535591546789201943375206602903 : 78D2D95A7F0F6F76
PRP: Verified
PRP without proof (small exponent)
2018-06-24axnC-PRP
M9883/158129/10436449/21258273703/1753018713541977529/740958100482716677361/52777604336327421559117167977173663/450826387535591546789201943375206602903 : 78D2D95A7F0F6F76
PRP: Verified
PRP without proof (small exponent)
2018-06-24HexaflexagonF-ECM
Factor: 450826387535591546789201943375206602903 / (ECM curve 2170, B1=3000000, B2=300000000)
2017-12-07ATHC-PRP
M9883/158129/10436449/21258273703/1753018713541977529/740958100482716677361/52777604336327421559117167977173663 : 7BCCA155FC7EDA58
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M9883/158129/10436449/21258273703/1753018713541977529/740958100482716677361/52777604336327421559117167977173663 : 7BCCA155FC7EDA58
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M9883/known_factors : 7BCCA155FC7EDA58
PRP without proof (not generated)