is 2 864011 - 1
has 260094 decimal digits
takes 0.021 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L1C3FA94BBC248212double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26868.986270.5882%1500000011010818882702,109.896320.1619%2,178.882676.5182%5.9300%
Target2440.000054.5455%140005500000.001517.6003%0.001562.5456%8.0002%
Difference+24+68.9862+16.0428%+14986000+1101081338270+2,109.8948+2.5615%+2,178.8811+13.9726%-2.0702%

Known prime factors (1 factor, 133.4 bits, 0.01543830% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8640111425554973284767484615912576578095118355341133.3898249634398663717734009824970851616
25 × 137 × 239 × 100417 × 307627 × 1416937 × 179880473477
2022-12-0714169371798804734772.145e+11344.65643.63

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-08T00:00:00ANONYMOUSv4_computers2000200000---0.000--0.167%
2002-02-17T00:00:00ANONYMOUSv4_computers4096409600---0.001--0.366%
2002-04-14T00:00:00ANONYMOUSv4_computers8192819200---0.002--0.674%
2002-05-25T00:00:00ANONYMOUSv4_computers163841638400---0.004--1.112%
2002-06-29T00:00:00ANONYMOUSv4_computers327683276800---0.007--1.690%
2002-12-16T00:00:00ANONYMOUSv4_computers655376553700---0.015--2.406%
2003-08-25T00:00:00ANONYMOUSv4_computers13107213107200---0.029--3.248%
2009-08-30T19:54:00Carsten Kossendeyleela864011864011---0.030--2.002%
2012-03-29T23:12:00Jocelyn LaroucheManual testing12046481204648---0.042--2.285%
2012-08-29T21:06:00Jocelyn LaroucheManual testing17280221728022---0.061--2.617%
2012-10-19T21:36:00Jocelyn LaroucheManual testing19540381954038---0.069--2.735%
2013-11-08T08:36:00David Campeaui5-2500k203000073080000---0.207--6.502%
2015-12-02T15:43:01Sid & AndyBullseye864011025920330012---0.784--8.840%
2022-11-25T10:33:16Jocelyn LaroucheManual testing20310004637653020---8.952--11.086%
2022-12-07T07:56:24lycorncolab_A_115000000110108188827041133.3892,1100.0424,22020.162%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-24T00:00:00ANONYMOUSv4_computers21255--0.006--
2000-12-31T00:00:00ANONYMOUSv4_computers21256--0.011--
2001-12-01T00:00:00ANONYMOUSv4_computers21257--0.022--
2003-09-09T00:00:00ANONYMOUSv4_computers21258--0.044--
2022-03-07T09:21:38LordJuliusManual testing258259--0.044--
2004-04-29T00:00:00Sturle Sundev4_computers21260--0.178--
2010-05-20T15:40:00Architects Cubeda3_bu2260261--0.178--
2015-02-06T11:10:00TJAOIManual testing261262--0.356--
2015-10-06T15:21:30Gordon SpenceManual testing262263--1.136--
2015-10-06T15:21:30Gordon SpenceManual testing263264--2.272--
2016-02-15T23:42:34lycornManual testing264265--4.324--
2018-05-28T04:27:00Smok_bmvManual testing265266--8.649--
2018-05-18T04:21:49BloodERazorManual testing265266--8.649--
2018-05-28T04:27:00Smok_bmvManual testing266267--17.30--
2018-05-28T04:27:00Smok_bmvManual testing267268--34.60--


ECM factoring results:
Total ECM effort:14.428 GHz-days
Estimated T-Level:25.672
DigitsB1CompleteFacMiss
201100015.4860.000%
25500001.67718.697%
302500000.13487.421%
3510000000.00999.122%


ECM Summary

B1B2factorcurvesGHz-days
5000050000003018.416
25000025000000436.012


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-01-08T00:00:00ANONYMOUSv4_computers1C3FA94BBC2482120.021
2015-04-11T21:29:00MadPooManual testing1C3FA94BBC2482120.021


PRP results:
dateuseridcompidcofactorsres64PRP
2022-12-08T03:30:25LordJuliusWhiteBox
14255549732847674846159125765780951183553
189B267B9910B375no


P-1 factor-bounds graph:
B1 = 15000000, B2 = 1101081888270 (P-1 stage 2)
B1 = 2031000, B2 = 4637653020 (P-1 stage 2)
B1 = 8640110, B2 = 259203300 (P-1 stage 2)
B1 = 15000000 (P-1 stage 1)
B1 = 8640110 (P-1 stage 1)
B1 = 2030000, B2 = 73080000 (P-1 stage 2)
B1 = 2031000 (P-1 stage 1)
B1 = 2030000 (P-1 stage 1)
B1 = 1954038 (P-1 stage 1)
B1 = 1728022 (P-1 stage 1)
B1 = 1204648 (P-1 stage 1)
B1 = 864011 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 65537, B2 = 6553700 (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 = 65537 (P-1 stage 1)
B1 = 8192, B2 = 819200 (P-1 stage 2)
B1 = 32768 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 16384 (P-1 stage 1)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 8192 (P-1 stage 1)
B1 = 4096 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-12-08T03:30:25+00:00