is 215400169-1
has 4,635,913 decimal digits
takes 7.724 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L75AE1070F4275B65double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2630.103661.9048%300,0006,000,0000.44407.6628%0.547669.5675%6.4906%
PrimeNet2650.473763.0769%70,0002,200,0000.13534.2949%0.609067.3718%4.2949%
GPU722697.752365.2174%110,0002,800,0000.18663.1078%7.938968.3252%3.1078%
Difference-6-7.6487-3.3126%+190,000+3,200,000+0.2574+4.5550%-7.3912+1.2424%+1.2424%

Known prime factors (1 factor, 122.3 bits, 0.00079399% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
15400169643492294238107715009471868085731602337122.275208923776822873734375730509219
47 × 103 × 619 × 3517 × 11897 × 17207 × 19541 × 4955647
19,5414,955,6472016-12-198.678e+90.20980.3667

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-04-14T00:00:00ANONYMOUSv4_computers230,000230,000---0.167--3.190%
2016-12-19T15:53:34ThaManual testing300,0006,000,0001237122.2750.44415.450.8887.663%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-07-12T00:00:00Alex Kruppav4_computers?253--7.79162e-5--
2001-01-08T00:00:00Net_Forcev4_computers?258--0.002--
2001-02-18T00:00:00ANONYMOUSv4_computers?265--0.243--
2014-02-23T00:20:00NesowaManual testing265266--0.485--
2014-02-23T00:20:00NesowaManual testing266267--0.970--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,00010.763


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-06-02T00:00:00ANONYMOUSv4_computers75AE1070F4275B657.724
2005-11-01T00:00:00ANONYMOUSv4_computers75AE1070F4275B657.724


PRP results:
dateuseridcompidcofactorsres64PRP
2020-06-14T23:10:26CrypticCluecruncher
6434922942381077150094718680857316023
23E9FBA340E52E0Ano
2020-09-19T21:01:04JaytholomewJaytholomew
6434922942381077150094718680857316023
23E9FBA340E52E0Ano


P-1 factor-bounds graph:
B1 = 300,000, B2 = 6,000,000 (stage 2)
B1 = 300,000 (stage 1)
B1 = 230,000 (stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
267
266
265
263
258
253
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2020-09-19T21:01:04+00:00