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
3727Factored
FactorDigitsBitsDate
205342793927.6old
19989306217978473083753832580.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000017361 / 40830
Estimated T-Level: 52.1
TF below 2^168 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse076B41D902E2BF442013
Verified2017-10-12kkmrkkblmbrbk076B41D902E2BF442225513
Verified2020-04-17Oliver KruseE86A24402A6C77252183253
Verified2024-02-03Wentao HuangE86A24402A6C7725296353
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M3727/205342793/1998930621797847308375383 : E86A24402A6C7725
PRP: Verified
PRP without proof (small exponent)
2021-09-09Jinyuan WangNF-PM1
B1=1300000000, B2=13000000000, E=12
2021-08-23H MichaelsonNF-PP1
Start=86/23, B1=100000000, B2=10000000000
2020-04-17Oliver KruseC-PRP
M3727/205342793/1998930621797847308375383 : E86A24402A6C7725
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M3727/205342793/1998930621797847308375383 : 076B41D902E2BF44
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M3727/205342793/1998930621797847308375383 : 076B41D902E2BF44
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M3727/205342793/1998930621797847308375383 : 076B41D902E2BF44
PRP without proof (not generated)