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
279001Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
24487189161678510011961.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000222 / 1566
Estimated T-Level: 30.7
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 KruseD5E83C9A8409D9081013
Verified2017-10-12Oliver KruseD5E83C9A8409D908115717213
Verified2017-11-06kkmrkkblmbrbkD5E83C9A8409D9081768213
Verified2020-04-17Oliver KruseA90C81321D9FBE8F119125353
Verified2024-08-07kkmrkkblmbrbkA90C81321D9FBE8F123557053
History
DateUserTypeResult
2024-11-05yuriy_5-1NF-PM1
B1=25668092, B2=6253273236210
2024-08-07Luke DurantCERT
PRP Certification
Proof certified good
2024-08-07kkmrkkblmbrbkC-PRP
M279001/2448718916167851001 : A90C81321D9FBE8F
PRP proof power = 5
PRP: Verified
Proof certified good
2023-03-19Naegi MakotoNF-PM1
B1=2000000, B2=79396947630
2022-01-03Lisander ViaeneNF-PM1
B1=100000
2020-04-17Oliver KruseC-PRP
M279001/2448718916167851001 : A90C81321D9FBE8F
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M279001/2448718916167851001 : D5E83C9A8409D908
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M279001/2448718916167851001 : D5E83C9A8409D908
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M279001/2448718916167851001 : D5E83C9A8409D908
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M279001/2448718916167851001 : D5E83C9A8409D908
PRP without proof (not generated)