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
1933Factored
FactorDigitsBitsDate
645881023929.3old
611805405673723693310027479527900129040284143142.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
60260000000105362 / 105362
6580000000064592 / 194238
Estimated T-Level: 61.7
TF below 2^200 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse42C7A4F02FED487C2013
Verified2017-10-02kkmrkkblmbrbk42C7A4F02FED487C2013
Verified2017-12-07ATH42C7A4F02FED487C2164113
Verified2020-04-17Oliver Kruse6E0A2EDA4D145A86275253
Verified2020-08-12_p95holder_6E0A2EDA4D145A862175753
History
DateUserTypeResult
2023-01-14mikrNF-PM1
B1=500000000000, B2=3291057749991451440
2021-07-26ViliamFNF-PP1
Start=2/7, B1=1000000000, B2=221000000000
2020-12-23Oliver KruseNF-PM1
B1=2000000000, B2=694546499190430
2020-08-12_p95holder_C-PRP
M1933/645881023/6118054056737236933100274795279001290402841 : 6E0A2EDA4D145A86
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M1933/645881023/6118054056737236933100274795279001290402841 : 6E0A2EDA4D145A86
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M1933/645881023/6118054056737236933100274795279001290402841 : 42C7A4F02FED487C
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M1933/645881023/6118054056737236933100274795279001290402841 : 42C7A4F02FED487C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M1933/known_factors : 42C7A4F02FED487C
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=1000000000, B2=100000000000, E=12