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:





MnDetails
2296807
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 262
Factored
FactorDigitsBitsDate
918722801929.8old
345224803989955306274172374.92025-04-24 02:27:21
ECM
DigitsB1Curves
2550000280 / 280
30250000122 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-11Oliver KruseBE2F137B42021B251013
Factored
PRP without proof (not generated)
2017-11-22storm5510BE2F137B42021B25141384113
Verified
Certified Good
2025-04-24BUROMIECZ533B3FD5A95EE562299783353
History
DateUserTypeResult
2025-04-25BUROMIECZFFactor: 918722801 / TF: 1-68
2025-04-25BUROMIECZNFno factor TF: 68-70
2025-04-24featherCERT
Proof certified good
2025-04-24BUROMIECZC-PRPM2296807/918722801/34522480398995530627417 : 533B3FD5A95EE562
Proof Certified Good

Proof Power: 7

2025-04-24BUROMIECZF-ECMFactor: 34522480398995530627417 / ECM curve 3, B1=85403, B2=32863740, Edwards Sigma=1737974836975866
2017-11-22storm5510C-PRPM2296807/918722801 : BE2F137B42021B25
2017-10-11Oliver KruseC-PRPM2296807/918722801 : BE2F137B42021B25
2016-04-28alpertronNF-PM1B1=500000, B2=15000000, E=12