Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
323377Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4449040168631238.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000458 / 640
Estimated T-Level: 28.6
TF below 2^90 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse9B570DA35D11D1EA1013
Verified2017-10-13Oliver Kruse9B570DA35D11D1EA126742013
Verified2017-12-12ATH9B570DA35D11D1EA12588513
Verified2020-04-18Oliver Kruse19389D574A80475115437453
Verified2024-09-03kkmrkkblmbrbk19389D574A804751130854953
History
DateUserTypeResult
2024-09-23yuriy_5-1NF-PM1
B1=12000002, B2=2107215910800
2024-09-03cressiCERT
PRP Certification
Proof certified good
2024-09-03kkmrkkblmbrbkC-PRP
M323377/444904016863 : 19389D574A804751
PRP proof power = 5
PRP: Verified
Proof certified good
2023-03-19Denial140NF-PM1
B1=1000000, B2=20563492950
2022-12-18krackerF-ECM
Factor: 444904016863 / (ECM curve 3, B1=250000, B2=36750000, Sigma=8548387298387472)
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M323377/444904016863 : 19389D574A804751
PRP: Verified
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M323377/444904016863 : 9B570DA35D11D1EA
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M323377/444904016863 : 9B570DA35D11D1EA
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M323377/444904016863 : 9B570DA35D11D1EA
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M323377/444904016863 : 9B570DA35D11D1EA
PRP without proof (not generated)