is 2 160308217 - 1
has 48257582 decimal digits
takes 1,052.023 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27695.466163.1579%----95.466163.1579%0.9957%
PrimeNet27423.865762.1622%6500003600000024.51195.3530%48.377667.5151%5.3530%
GPU72278381.867664.1026%10000003600000027.66093.8993%409.528568.0019%3.8993%
Difference-2-286.4015-0.9447%-1000000-36000000-27.6609-3.8993%-314.0624-4.8440%-4.8440%

Known prime factors (1 factor, 75.6 bits, 0.00004716% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
160308217570662936518018154953192375.595177989296867427
34127 × 5215497901
3412752154979012017-12-2584.7932,704.25,050.2

P-1 results:
Exponent "160308217" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-06-29T05:05:00sasaki3mate_ma2263264--0.012--
2011-02-02T03:52:00dsls2264265--0.023--
2013-02-27T09:43:00Richard8F02265266--0.047--
2015-05-02T22:06:00gurus6266267--0.093--
2016-03-02T06:07:37XZTManual testing267268--0.186--
2017-03-26T01:01:49Xolotlarmstrong-phi-13268269--0.373--
2017-12-03T08:58:33Luigi R.Manual testing269270--0.746--
2017-12-25T17:13:09Oliver KruseManual testing27027675.5952383.302,141169.5


ECM factoring results:
Exponent "160308217" not found


Lucas-Lehmer results:
Exponent "160308217" not found


PRP results:
Exponent "160308217" not found


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
276
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2017-12-25T17:13:09+00:00