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
785651Factored
FactorDigitsBitsDate
810791833929.6old
16278688731030.62008-07-16 09:26:39
73929759111032.82008-07-16 09:26:39
7582424127863736011859.42015-11-18 12:09:04
78370672411353150838972272.72014-10-03 11:35:33
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-05Oliver KruseC4949538C642F6CB5013
Verified2017-10-13Oliver KruseC4949538C642F6CB5900713
Verified2017-12-18ATHC4949538C642F6CB545312713
Unverified (Reliable)2020-04-21Oliver KruseE67D913513CA4E__549499853
P-1 factors
DateFactorB1B2
2014-10-03783706724113531508389750000015000000
History
DateUserTypeResult
2020-04-21Oliver KruseC-PRP
M785651/810791833/1627868873/7392975911/758242412786373601/7837067241135315083897 : E67D913513CA4E__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-18ATHC-PRP
M785651/810791833/1627868873/7392975911/758242412786373601/7837067241135315083897 : C4949538C642F6CB
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M785651/810791833/1627868873/7392975911/7837067241135315083897/758242412786373601 : C4949538C642F6CB
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-05Oliver KruseC-PRP
M785651/810791833/1627868873/7392975911/7837067241135315083897/758242412786373601 : C4949538C642F6CB
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M785651/810791833/1627868873/7392975911/7837067241135315083897/758242412786373601 : C4949538C642F6CB
PRP without proof (not generated)
2015-11-18TJAOIF
Factor: 758242412786373601 / TF: 59-60
2014-10-03alpertronF-PM1
Factor: 7837067241135315083897 / (P-1, B1=500000, B2=15000000, E=12)
2008-07-16J FeitsmaF
Factor: 7392975911
2008-07-16J FeitsmaF
Factor: 1627868873