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
333941Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
68731736631032.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000449 / 640
Estimated T-Level: 28.5
TF below 2^90 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-24Oliver KruseAB95635AF27BBFA11013
Verified2017-10-13Oliver KruseAB95635AF27BBFA1118178013
Verified2017-12-12ATHAB95635AF27BBFA1112830913
Verified2020-04-18Oliver Kruse464A19C3198D3008127448953
Verified2024-09-08kkmrkkblmbrbk464A19C3198D3008132657853
History
DateUserTypeResult
2024-09-27yuriy_5-1NF-PM1
B1=12000002, B2=2107215910800
2024-09-08J05hu4CERT
PRP Certification
Proof certified good
2024-09-08kkmrkkblmbrbkC-PRP
M333941/6873173663 : 464A19C3198D3008
PRP proof power = 5
PRP: Verified
Proof certified good
2023-11-13USAFSSNF-PM1
B1=1600000, B2=5367308100
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M333941/6873173663 : 464A19C3198D3008
PRP: Verified
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M333941/6873173663 : AB95635AF27BBFA1
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M333941/6873173663 : AB95635AF27BBFA1
PRP: Verified
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M333941/6873173663 : AB95635AF27BBFA1
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M333941/6873173663 : AB95635AF27BBFA1
PRP without proof (not generated)