is 2 168848887 - 1
has 50828580 decimal digits
takes 1,149.110 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27690.637263.1579%----90.637263.1579%0.0000%
PrimeNet27422.658562.1622%7000004000000028.03685.5293%50.695464.2543%2.0922%
GPU72278362.552064.1026%10000004000000030.83603.9993%393.388065.5382%1.4357%
Difference-2-271.9148-0.9447%-1000000-40000000-30.8360-3.9993%-302.7508-2.3803%-1.4357%

Known prime factors:
No known factors for M168848887

P-1 results:
No P-1 results for M168848887


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-07-08T12:15:00Donna NoblePH9500263264--0.012--
2011-02-22T11:59:00RichardFX5000_1264265--0.022--
2013-04-02T04:14:00Richard8F02265266--0.044--
2015-06-04T02:42:00La GüiraManual testing266268--0.266--
2015-06-04T02:42:00La GüiraManual testing268269--0.354--
2015-06-04T02:42:00La GüiraManual testing269270--0.708--
2018-02-27T12:06:51Oliver KruseManual testing270276--89.22--


ECM factoring results:
No ECM results for M168848887


Lucas-Lehmer results:
No L-L results for M168848887


PRP results:
No PRP results for M168848887


TF factor-bounds graph:
276
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2100
Last modified: 2018-02-27T12:06:51+00:00