is 25311363-1
has 1,598,880 decimal digits
takes 0.839 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L03E2B613FFE17DECdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26811.222166.1765%1,000,00022,500,0000.49726.0544%11.719372.2309%9.3277%
PrimeNet2620.115762.9032%22,000500,0000.01103.0135%0.126765.9168%3.0135%
GPU722662.780565.1515%32,000600,0000.01442.0271%2.794967.1787%2.0271%
Difference+2+8.4416+1.0250%+968,000+21,900,000+0.4828+4.0273%+8.9244+5.0523%+5.0523%

Known prime factors (1 factor, 121.2 bits, 0.00228241% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
5311363311155143206638647319161775431753515337121.227292914590102991122353303450952
23 × 37 × 8443 × 158923 × 188407 × 277577 × 14102147
277,57714,102,1472019-05-312.645e+100.23600.3286

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-05-24T00:00:00ANONYMOUSv4_computers20,00020,000---0.005--0.314%
2000-08-31T00:00:00ANONYMOUSv4_computers20,00020,000---0.005--0.314%
2009-11-14T07:02:00harleeP4_260060,000990,000---0.025--2.059%
2019-05-31T22:29:35KingFactoringMachine1,000,00022,500,000637121.2270.4971.6780.9946.054%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-03-03T00:00:00ANONYMOUSv4_computers?262--0.058--
2009-05-30T01:51:00GrunwalderGIMPManual testing262263--0.185--
2014-12-23T20:09:00VictordeHollanderManual testing263264--0.370--
2014-12-23T20:09:00VictordeHollanderManual testing264265--0.703--
2015-08-16T04:40:00snme2pm1Manual testing265266--1.407--
2016-07-25T13:39:31Gordon SpenceManual testing266267--2.814--
2018-06-19T09:09:02ramgeisManual testing267268--5.628--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,00092.161


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-07-21T00:00:00ANONYMOUSv4_computers03E2B613FFE17DEC0.839
2000-09-29T00:00:00ANONYMOUSv4_computers03E2B613FFE17DEC0.839


PRP results:
dateuseridcompidcofactorsres64PRP
2019-06-01T22:02:58artorollofourth
3111551432066386473191617754317535153
A432B651409995FAno
2019-06-02T20:18:19marssystemsSYSTEM01
3111551432066386473191617754317535153
A432B651409995FAno


P-1 factor-bounds graph:
B1 = 1,000,000, B2 = 22,500,000 (stage 2)
B1 = 1,000,000 (stage 1)
B1 = 60,000, B2 = 990,000 (stage 2)
B1 = 60,000 (stage 1)
B1 = 20,000 (stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
268
267
266
265
264
263
262
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2019-06-02T20:18:19+00:00