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
25969Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3111013972939691548.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000002227 / 4588
Estimated T-Level: 37.4
TF below 2^119 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse155AF6676E65F9EB1013
Verified2017-10-12kkmrkkblmbrbk155AF6676E65F9EB12337313
Verified2020-04-17Oliver Kruse03A9BB9B97DBA6581127553
Verified2024-07-01kkmrkkblmbrbk03A9BB9B97DBA65811960253
History
DateUserTypeResult
2024-11-24masserNF-PP1
Start=79/61, B1=100000000, B2=99900000000
2024-11-24masserNF-PP1
Start=6/5, B1=100000000, B2=99900000000
2024-11-21masserNF-PP1
Start=2/7, B1=100000000, B2=99900000000
2024-07-01kkmrkkblmbrbkC-PRP
M25969/311101397293969 : 03A9BB9B97DBA658
PRP: Verified
PRP without proof (small exponent)
2024-03-11nordiNF-PM1
B1=8000000000, B2=2406080532085230
2023-05-02nordiNF-PM1
B1=8000000000
2020-04-17Oliver KruseC-PRP
M25969/311101397293969 : 03A9BB9B97DBA658
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M25969/311101397293969 : 155AF6676E65F9EB
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M25969/311101397293969 : 155AF6676E65F9EB
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M25969/311101397293969 : 155AF6676E65F9EB
PRP without proof (not generated)
2016-12-09kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12