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
2397103Factored
FactorDigitsBitsDate
173497010044807120732063.92013-11-24 06:12:18
ECM
DigitsB1Curves
255000053 / 280
Estimated T-Level: 20.9 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Doug FortuneBC7B839D3BEAB4A30
Verified (Factored)1999-06-06Ken PlowuchaBC7B839D3BEAB4A31595874
Verified (Factored)1999-12-30chatmateBC7B839D3BEAB4A3393828
Verified (Factored)2000-03-08chatmateBC7B839D3BEAB4A3882612
Verified (Factored)2000-06-23chatmateBC7B839D3BEAB4A350406
Verified (Factored)2000-06-23chatmateBC7B839D3BEAB4A31336620
Verified (Factored)2000-07-03chatmateBC7B839D3BEAB4A31216268
Bad2000-07-12chatmateB42F1BAC534E11BF229989
Bad2000-07-12chatmate17E89F79CC52E446761498
Verified (Factored)2000-08-10chatmateBC7B839D3BEAB4A31324635
Verified (Factored)2000-10-15chatmateBC7B839D3BEAB4A3604618
Verified (Factored)2000-12-14chatmateBC7B839D3BEAB4A32213758
Verified (Factored)2000-12-21chatmateBC7B839D3BEAB4A3832883
Bad2001-01-21chatmate539C9B94157DF322229989
Bad2001-01-21chatmate36A1A83308267D782228456
Bad2001-01-28chatmate5299B035A531F6B1993267
Verified (Factored)2001-01-28chatmateBC7B839D3BEAB4A32188556
Verified (Factored)2001-02-04chatmateBC7B839D3BEAB4A3941605
Bad2001-02-11chatmate141B784E2D6C42902358283
Verified (Factored)2001-03-11chatmateBC7B839D3BEAB4A31126082
Verified (Factored)2001-03-25chatmateBC7B839D3BEAB4A3494446
Bad2001-04-08chatmate5D6FD21F78F4DD5D978245
Bad2001-05-06chatmate2096658CFFC4C3DC1708627
Verified (Factored)2001-07-03chatmateBC7B839D3BEAB4A3615050
Bad2001-08-04chatmate1ABAFEA551526ACE151847
Verified (Factored)2001-10-20chatmateBC7B839D3BEAB4A31142519
Verified (Factored)2001-11-10chatmateBC7B839D3BEAB4A32035252
Bad2002-01-08chatmate35AF751040C6023F1342372
Bad2002-02-24chatmate17DD4495F0B3848B1436638
Verified (Factored)2002-03-03chatmateBC7B839D3BEAB4A31198497
Verified (Factored)2003-02-16chatmateBC7B839D3BEAB4A32029957
Bad2003-03-16chatmate024F64546C5DE9CE2186588
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-13Oliver Kruse34CD4B823CE27C0A1110556553
Verified2017-11-26kkmrkkblmbrbk34CD4B823CE27C0A147504253
History
DateUserTypeResult
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-26kkmrkkblmbrbkC-PRP
M2397103/17349701004480712073 : 34CD4B823CE27C0A
PRP: Verified
PRP without proof (not generated)
2017-10-13Oliver KruseC-PRP
M2397103/17349701004480712073 : 34CD4B823CE27C0A
PRP: Verified
PRP without proof (not generated)
2013-11-24arnaudF-ECM
Factor: 17349701004480712073
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-02Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-27James HeinrichNF-PM1
B1=160000, B2=3720000, E=6
2011-01-18JossNF-PM1
B1=50000
2009-01-16Sturle SundeNF
no factor from 2^60 to 2^61