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
Fermat F20ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006361 / 16550
Estimated T-Level: 46.9
TF below 2^151 is very unlikely to find new factors due to ECM effort.
History
DateUserTypeResult
2021-09-15H MichaelsonNF-PP1
Start=2/7, B1=100000, B2=10000000
2021-05-02ATHNF-PP1
Start=6/5, B1=100000000, B2=10000000000
2021-04-23ATHNF-PP1
Start=2/7, B1=10000000, B2=1000000000