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
16455469Factored
FactorDigitsBitsDate
308361963682739839532412374.72017-03-26 03:58:58
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-07-30Dell Coleman8891415706E8C8F9904156
Verified (Factored)2003-12-13Adrie Rozendaal8891415706E8C8F913266116
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-03-24Perig4EB61771FBFD26321260137353
History
DateUserTypeResult
2024-03-24cpkuntzCERT
PRP Certification
Proof certified good
2024-03-24PerigC-PRP
M16455469/30836196368273983953241 : 4EB61771FBFD2632
PRP proof power = 8
PRP: Verified
Proof certified good
2024-02-08nordiNF-PM1
B1=500000, B2=266674590
2023-12-21nordiNF-PM1
B1=500000
2017-03-26bamF-ECM
Factor: 30836196368273983953241 / (ECM curve 1, B1=50000, B2=5000000)
2014-08-28NesowaNF
no factor from 2^66 to 2^67
2014-03-21NesowaNF
no factor from 2^65 to 2^66