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
131071Factored
FactorDigitsBitsDate
231733529927.8old
642963547671135.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000009763 / 16550
Estimated T-Level: 47.9
TF below 2^154 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse2ED0E16662911D4D2013
Verified2017-10-13kkmrkkblmbrbk2ED0E16662911D4D29870413
Verified2020-04-17Oliver KruseEFB488A9021E11C029757153
Verified2024-02-03Wentao HuangEFB488A9021E11C0211705453
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M131071/231733529/64296354767 : EFB488A9021E11C0
PRP proof power = 5
PRP: Verified
Proof certified good
2021-08-27H MichaelsonNF-PP1
Start=2/7, B1=20000000, B2=2000000000
2021-08-25H MichaelsonNF-PP1
Start=2/7, B1=10000000, B2=1000000000
2021-08-25H MichaelsonNF-PP1
Start=88/41, B1=1050000, B2=105000000
2020-04-17Oliver KruseC-PRP
M131071/231733529/64296354767 : EFB488A9021E11C0
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M131071/231733529/64296354767 : 2ED0E16662911D4D
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M131071/231733529/64296354767 : 2ED0E16662911D4D
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M131071/231733529/64296354767 : 2ED0E16662911D4D
PRP without proof (not generated)
2017-03-23kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12