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
250007Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
206005769927.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000626 / 640
Estimated T-Level: 29.9
TF below 2^94 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse00A91DCAFD65C6441013
Verified2017-10-12kkmrkkblmbrbk00A91DCAFD65C64411325813
Verified2020-04-17Oliver KruseE68EB51E76CFFDF2117228253
Verified2024-02-03Wentao HuangE68EB51E76CFFDF219524153
History
DateUserTypeResult
2024-02-03slaurCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M250007/206005769 : E68EB51E76CFFDF2
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-19Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-08-16Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2021-05-26gLaussNF-PP1
Start=2/7, B1=7500000, B2=592500000
2021-05-26gLaussNF-PM1
B1=15000000, B2=1290000000
2021-05-26ViliamFNF-PM1
B1=50000000, B2=7050000000
2020-04-17Oliver KruseC-PRP
M250007/206005769 : E68EB51E76CFFDF2
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M250007/206005769 : 00A91DCAFD65C644
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M250007/206005769 : 00A91DCAFD65C644
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M250007/206005769 : 00A91DCAFD65C644
PRP without proof (not generated)