is 2 3174401 - 1
has 955590 decimal digits
takes 0.270 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L1A5F743394DAC07Fdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26818.776767.6471%30000001200000001.15698.2951%19.933675.9421%12.6088%
PrimeNet2600.048463.3333%130002400000.00312.6536%0.051565.9869%2.6536%
GPU722641.121365.6250%150002600000.00351.5823%1.124867.2073%1.5823%
Difference+4+17.6555+2.0221%+2985000+119740000+1.1534+6.7127%+18.8089+8.7348%+8.7348%

Known prime factors:
No known factors for M3,174,401

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-02-14T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.252%
2009-07-03T00:52:00Carsten Kossendeyleela15000191250---0.003--0.781%
2011-09-11T05:22:00Squeeky_SquirrelT7500_220060000960000---0.013--1.877%
2014-06-01T23:28:00Jocelyn LaroucheManual testing8021980219---0.010--0.753%
2014-09-29T22:04:00Jocelyn LaroucheManual testing100438100438---0.012--0.862%
2015-09-27T23:02:42Squeeky_SquirrelP4_26001550003913750---0.044--3.168%
2016-10-03T01:22:50Jocelyn Larouche low 4MManual testing23384546965006---0.059--3.518%
2019-08-28T11:04:15mikrMSI300000012000000012---1.157--8.295%
2021-02-15T02:44:04mognutsStrand16600052240006---0.054--3.408%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-05-27T00:00:00ANONYMOUSv4_computers?260--0.024--
2009-04-09T16:14:00S485122USB-A260261--0.048--
2011-10-23T23:20:00markroldgamer261262--0.097--
2013-01-03T08:45:00dbaughManual testing262263--0.309--
2015-02-15T12:51:00VictordeHollanderManual testing263264--0.618--
2015-02-15T12:51:00VictordeHollanderManual testing264265--1.177--
2015-06-17T22:19:00ThaManual testing265266--2.354--
2017-04-25T10:21:54Gordon SpenceManual testing266267--4.708--
2019-01-07T14:44:21TJAOIManual testing267268--9.416--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
500005000000222.580
50000635000070.920
50000675000070.949


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-12-30T00:00:00vidmarv4_computers1A5F743394DAC07F0.270


PRP results:
Exponent "3174401" not found


P-1 factor-bounds graph:
B1 = 3000000, B2 = 120000000 (stage 2)
B1 = 3000000 (stage 1)
B1 = 233845, B2 = 4696500 (stage 2)
B1 = 166000, B2 = 5224000 (stage 2)
B1 = 155000, B2 = 3913750 (stage 2)
B1 = 233845 (stage 1)
B1 = 166000 (stage 1)
B1 = 155000 (stage 1)
B1 = 60000, B2 = 960000 (stage 2)
B1 = 100438 (stage 1)
B1 = 80219 (stage 1)
B1 = 60000 (stage 1)
B1 = 15000, B2 = 191250 (stage 2)
B1 = 15000 (stage 1)
B1 = 2048, B2 = 204800 (stage 2)
B1 = 2048 (stage 1)
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TF factor-bounds graph:
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2100
Last modified: 2021-02-15T02:44:04+00:00