is 2 79423963 - 1
has 23908996 decimal digits
takes 247.841 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L4CCB6CC6CDB0A3__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27596.342664.0000%690000136275006.31143.7724%102.653965.3581%1.3581%
PrimeNet2716.019361.9718%340000160000005.39895.2422%11.418263.9653%1.9935%
GPU7227596.342664.0000%500000170000006.32993.7794%102.672565.3606%1.3606%
Difference---+190000-3372500-0.0185-0.0070%-0.0185-0.0025%-0.0025%

Known prime factors:
No known factors for M79423963

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-09-30T05:16:40NesowaDell_Test69000013627500---6.311--3.772%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-05-29T10:44:00Architects Cubedm1_37263264--0.025--
2010-11-27T03:00:00Xyzzy1264265--0.047--
2011-02-22T02:36:00Jason Bartholomewnetbook265266--0.094--
2011-02-26T16:27:00Cloudy WaterACER266267--0.188--
2011-03-18T08:02:00ANONYMOUS267268--0.376--
2011-03-24T21:29:00Charles Spaltonlinuxherd04268269--0.753--
2011-03-27T13:22:00eon_blue_apocalypsePhenom-6269270--1.505--
2014-02-28T05:15:00Smok_bmvManual testing270271--3.011--
2016-02-22T02:45:30GregManual testing271272--6.022--
2016-08-12T21:42:03RichD0Manual testing272273--12.04--
2016-09-21T00:33:35RichD0Manual testing273275--72.26--


ECM factoring results:
No ECM results for M79423963


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2018-02-16T19:19:53curtiscwcm231--30l4CCB6CC6CDB0A3__247.8


PRP results:
No PRP results for M79423963


P-1 factor-bounds graph:
B1 = 690000, B2 = 13627500 (P-1 stage 2)
B1 = 690000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-02-16T19:19:53+00:00