is 2 90287209 - 1
has 27179159 decimal digits
takes 304.385 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27584.750764.0000%----84.750764.0000%2.0282%
PrimeNet2715.295161.9718%360000180000006.45795.4747%11.753064.0538%2.0819%
GPU7227584.750764.0000%600000200000008.09994.0587%92.850665.4611%1.4611%
Difference----600000-20000000-8.0999-4.0587%-8.0999-1.4611%-1.4611%

Known prime factors (1 factor, 74.1 bits, 0.00008204% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
90287209197913945933817522834972374.067109602427700372
22 × 59 × 426739 × 1088293
2018-11-25426739108829351.4732.26234.2455

P-1 results:
Exponent "90287209" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-09-10T02:41:00Carsten Kossendeyleela265266--0.083--
2010-11-20T05:42:00Carsten KossendeyManual testing266267--0.166--
2011-01-23T14:07:00Carsten KossendeyManual testing267268--0.331--
2012-05-29T07:17:00Carsten KossendeyManual testing268269--0.662--
2013-11-26T12:10:00Carsten KossendeyManual testing269270--1.324--
2014-11-18T12:41:00shaugeManual testing270271--2.649--
2015-11-22T09:45:33Carsten KossendeyManual testing271272--5.297--
2016-10-31T20:23:43Carsten KossendeyManual testing272273--10.59--
2018-04-05T01:13:02Carsten KossendeyManual testing273274--21.19--
2018-11-25T15:47:30TheJudgerManual testing27427574.067239.099620.018.53


ECM factoring results:
Exponent "90287209" not found


Lucas-Lehmer results:
Exponent "90287209" not found


PRP results:
Exponent "90287209" not found


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
250
260
270
280
290
2100
Last modified: 2018-11-25T15:47:30+00:00