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
699427Factored
FactorDigitsBitsDate
11190833823.4old
9170178220517771549.72014-05-08 12:39:44
599372947171416952792065.72015-09-24 17:52:58
235948401767893930914492374.32014-10-21 19:48:47
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
Verified2017-09-28Oliver Kruse8BBF2E0460D295974013
Verified2017-09-30alpertron8BBF2E0460D295974013
Verified2017-12-08ATH8BBF2E0460D29597453324213
Unverified (Reliable)2020-04-20Oliver Kruse7D708310115FAC__422049953
P-1 factors
DateFactorB1B2
2014-10-2123594840176789393091449100000030000000
History
DateUserTypeResult
2020-04-20Oliver KruseC-PRP
M699427/11190833/917017822051777/59937294717141695279/23594840176789393091449 : 7D708310115FAC__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-08ATHC-PRP
M699427/11190833/917017822051777/59937294717141695279/23594840176789393091449 : 8BBF2E0460D29597
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-30alpertronC-PRP
M699427/11190833/23594840176789393091449/59937294717141695279/917017822051777 : 8BBF2E0460D29597
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M699427/11190833/917017822051777/23594840176789393091449/59937294717141695279 : 8BBF2E0460D29597
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M699427/11190833/917017822051777/23594840176789393091449/59937294717141695279 : 8BBF2E0460D29597
PRP without proof (not generated)
2015-09-24Richard B. WoodsF-ECM
Factor: 59937294717141695279
2014-10-21alpertronF-PM1
Factor: 23594840176789393091449 / (P-1, B1=1000000, B2=30000000, E=12)
2014-05-08TJAOIF
Factor: 917017822051777