is 2 604031 - 1
has 181832 decimal digits
takes 0.009 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L6FA84770D0231B9Fdouble-checked
PRP5FC9D48A5A2AEC8DPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual269197.650171.0145%12000000680042059620816.546017.8001%1,014.196176.1740%5.1595%
PrimeNet2400.000050.0000%60002200000.000420.5324%0.000460.2662%10.2662%
GPU722440.000054.5455%100003600000.000615.4405%0.000661.5639%7.0184%
Difference+25+197.6501+16.4690%+11990000+680041699620+816.5454+2.3596%+1,014.1955+14.6101%-1.8589%

Known prime factors (1 factor, 140.9 bits, 0.02333456% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
604031268882702738096111372565508426657593097827343140.9482225735953436960283268288452303421456
24 × 593 × 1117 × 5693 × 29927 × 122887 × 304433 × 32949115081
2022-05-10304433329491150812.585e+1139.55773.870

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-12-07T00:00:00Alex Kruppav4_computers1000004000000---0.007--2.019%
2002-05-11T00:00:00ANONYMOUSv4_computers163841638400---0.002--0.887%
2002-06-29T00:00:00ANONYMOUSv4_computers327683276800---0.005--1.379%
2002-09-29T00:00:00ANONYMOUSv4_computers655366553600---0.009--2.003%
2003-05-04T00:00:00ANONYMOUSv4_computers13107213107200---0.018--2.753%
2011-07-01T01:39:00Jocelyn LaroucheManual testing383230383230---0.008--1.165%
2011-08-28T21:10:00Jocelyn LaroucheManual testing638717638717---0.014--1.485%
2012-03-08T02:12:00Jocelyn LaroucheManual testing798396798396---0.018--1.639%
2012-07-21T19:06:00Jocelyn LaroucheManual testing12080621208062---0.027--1.950%
2013-10-13T15:15:00David Campeaui5-2500k125500040160000---0.074--4.914%
2015-10-22T16:09:45Bruno Victal5820K-linux16000006600000012---0.113--5.505%
2015-11-09T02:07:31Sid & AndyWoody604031018120930012---0.343--7.311%
2022-05-10T01:07:34lycornpulsar1200000068004205962043140.948816.50.0181,63317.800%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-04-08T00:00:00ANONYMOUSv4_computers21256--0.016--
2001-10-13T00:00:00ANONYMOUSv4_computers21257--0.032--
2003-10-23T00:00:00ANONYMOUSv4_computers21258--0.064--
2008-10-11T02:01:00Sturle Sundebruckner.ifi258259--0.064--
2008-10-11T03:03:00Sturle Sundebruckner.ifi259260--0.127--
2010-12-23T06:44:00Sid & AndyToy_Soldier260261--0.254--
2015-07-17T20:46:00NRManual testing261262--0.509--
2015-09-25T18:58:51Gordon SpenceManual testing262263--1.625--
2015-09-25T18:58:51Gordon SpenceManual testing263264--3.250--
2017-10-15T00:41:13BloodERazorManual testing264265--6.186--
2017-11-28T04:38:36Smok_bmvManual testing265266--12.37--
2017-11-28T04:38:36Smok_bmvManual testing266267--24.74--
2017-11-28T04:38:36Smok_bmvManual testing267268--49.49--
2018-02-05T04:35:29Smok_bmvManual testing268269--98.97--


ECM factoring results:
Total ECM effort:21.055 GHz-days
Estimated T-Level:26.804
DigitsB1CompleteFacMiss
201100028.3360.000%
25500003.7032.465%
302500000.36169.714%
3510000000.02897.226%
4030000000.00299.818%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002864.848
2500002500000018315.51
2500003775000070.699


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-07-06T00:00:00ANONYMOUSv4_computers6FA84770D0231B9F0.009
2015-04-11T15:29:00MadPooManual testing6FA84770D0231B9F0.009


PRP results:
dateuseridcompidcofactorsres64PRP
2022-05-10T02:14:22aperson12012_VP113
2688827027380961113725655084266575930978273
5FC9D48A5A2AEC8Dno


P-1 factor-bounds graph:
B1 = 12000000, B2 = 680042059620 (P-1 stage 2)
B1 = 6040310, B2 = 181209300 (P-1 stage 2)
B1 = 12000000 (P-1 stage 1)
B1 = 6040310 (P-1 stage 1)
B1 = 1600000, B2 = 66000000 (P-1 stage 2)
B1 = 1255000, B2 = 40160000 (P-1 stage 2)
B1 = 1600000 (P-1 stage 1)
B1 = 1255000 (P-1 stage 1)
B1 = 1208062 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 798396 (P-1 stage 1)
B1 = 638717 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 383230 (P-1 stage 1)
B1 = 100000, B2 = 4000000 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 16384, B2 = 1638400 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
B1 = 16384 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-10T02:14:22+00:00