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
138937Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1000688185031236.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000193 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseFC5E539651C35CAB1013
Verified2017-09-22Oliver KruseFC5E539651C35CAB1013
Verified2017-11-06kkmrkkblmbrbkFC5E539651C35CAB17501713
Verified2020-04-17Oliver Kruse01226CAD13BF1951112521753
Verified2024-02-03Wentao Huang01226CAD13BF1951112415253
History
DateUserTypeResult
2024-02-03curtiscCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M138937/100068818503 : 01226CAD13BF1951
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M138937/100068818503 : 01226CAD13BF1951
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M138937/100068818503 : FC5E539651C35CAB
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M138937/100068818503 : FC5E539651C35CAB
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M138937/100068818503 : FC5E539651C35CAB
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M138937/100068818503 : FC5E539651C35CAB
PRP without proof (not generated)
2017-03-22kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12