Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
722167Factored
FactorDigitsBitsDate
770002564261785502872066.12015-10-16 10:41:33
143294331983320571934072373.62007-08-29 15:01:22
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 Kruse7BA7DF63BD857EE32013
Verified2017-09-30alpertron7BA7DF63BD857EE32013
Verified2017-12-08ATH7BA7DF63BD857EE3251829013
Unverified (Reliable)2020-04-20Oliver KruseD685B2208BEB5F__265498653
History
DateUserTypeResult
2023-01-02USAFSSNF-PM1
B1=1650000, B2=3618231540
2020-04-20Oliver KruseC-PRP
M722167/77000256426178550287/14329433198332057193407 : D685B2208BEB5F__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-08ATHC-PRP
M722167/77000256426178550287/14329433198332057193407 : 7BA7DF63BD857EE3
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-30alpertronC-PRP
M722167/14329433198332057193407/77000256426178550287 : 7BA7DF63BD857EE3
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M722167/14329433198332057193407/77000256426178550287 : 7BA7DF63BD857EE3
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M722167/14329433198332057193407/77000256426178550287 : 7BA7DF63BD857EE3
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-10-16TJAOIF-ECM
Factor: 77000256426178550287 / (ECM curve 19, B1=50000, B2=5000000)
2007-08-29Team_BunduF-ECM
Factor: 14329433198332057193407