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
11833Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
70999516.1old
1135969720.12008-08-26 19:58:35
55229817531032.42008-08-26 19:58:35
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001282 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseCB778DC784C4771B3013
Verified2017-10-12kkmrkkblmbrbkCB778DC784C4771B3220313
Verified2020-04-17Oliver Kruse198503CFFE0C9BF5373753
Verified2024-07-01kkmrkkblmbrbk198503CFFE0C9BF53221153
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M11833/1135969/5522981753/70999 : 198503CFFE0C9BF5
PRP: Verified
PRP without proof (small exponent)
2023-03-26-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2020-04-17Oliver KruseC-PRP
M11833/70999/1135969/5522981753 : 198503CFFE0C9BF5
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M11833/70999/1135969/5522981753 : CB778DC784C4771B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11833/70999/1135969/5522981753 : CB778DC784C4771B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11833/70999/1135969/5522981753 : CB778DC784C4771B
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-08-26-Anonymous-F
Factor: 5522981753
2008-08-26-Anonymous-F
Factor: 1135969