is 25384339-1
has 1,620,848 decimal digits
takes 0.850 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LD56E01ADA84FF791double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26811.070066.1765%1,000,00022,500,0000.49726.0637%11.567272.2402%9.3370%
PrimeNet2620.114162.9032%22,000550,0000.01163.0906%0.125765.9938%3.0906%
GPU722662.742965.1515%32,000650,0000.01502.0745%2.757967.2260%2.0745%
Difference+2+8.3272+1.0250%+968,000+21,850,000+0.4822+3.9893%+8.8094+5.0142%+5.0142%

Known prime factors (1 factor, 129.5 bits, 0.00240546% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
538433997468587744813874100902750949151892908139129.51890511191573203204795335835047860
22 × 35 × 5 × 397 × 8461 × 26879 × 36011 × 957937 × 5979551
957,9375,979,5512019-12-112.880e+100.28200.4464

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-06-11T00:00:00ANONYMOUSv4_computers20,000160,000---0.006--0.903%
2000-09-08T00:00:00ANONYMOUSv4_computers20,00020,000---0.005--0.315%
2010-05-11T11:37:00Squeeky_SquirrelP4_260060,0001,020,000---0.026--2.080%
2019-07-08T00:01:51Ivan MGAMERSDREAM85,0001,211,2506---0.034--2.333%
2019-12-11T19:16:56KingHiatus1,000,00022,500,0001239129.5180.4971.7010.9946.064%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-03-17T00:00:00ANONYMOUSv4_computers?262--0.057--
2009-05-19T02:47:00GrunwalderGIMPManual testing262263--0.182--
2014-12-25T15:33:00VictordeHollanderManual testing263264--0.365--
2014-12-25T15:33:00VictordeHollanderManual testing264265--0.694--
2015-08-20T03:44:00snme2pm1Manual testing265266--1.388--
2016-08-12T12:04:27Gordon SpenceManual testing266267--2.776--
2018-06-19T09:09:19ramgeisManual testing267268--5.551--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,00092.161


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-07-11T00:00:00ANONYMOUSv4_computersD56E01ADA84FF7910.850
2000-10-07T00:00:00ANONYMOUSv4_computersD56E01ADA84FF7910.850


PRP results:
dateuseridcompidcofactorsres64PRP
2019-12-11T22:01:13mrhlanai
974685877448138741009027509491518929081
107BF197BFB3769Cno
2019-12-13T13:07:59arnaudstm-11-010
974685877448138741009027509491518929081
107BF197BFB3769Cno


P-1 factor-bounds graph:
B1 = 1,000,000, B2 = 22,500,000 (stage 2)
B1 = 1,000,000 (stage 1)
B1 = 85,000, B2 = 1,211,250 (stage 2)
B1 = 60,000, B2 = 1,020,000 (stage 2)
B1 = 85,000 (stage 1)
B1 = 60,000 (stage 1)
B1 = 20,000, B2 = 160,000 (stage 2)
B1 = 20,000 (stage 1)
103
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106
103
104
105
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107
108
TF factor-bounds graph:
268
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265
264
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262
250
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2100
2110
2120
2130
Last modified: 2019-12-13T13:07:59+00:00