is 2 56726627 - 1
has 17076417 decimal digits
takes 120.229 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
Actual27216.858663.8889%----16.858663.8889%0.0000%
PrimeNet2692.104662.3188%240000110000002.53925.4692%4.643864.3797%2.0608%
GPU7227333.720464.3836%400000130000003.33904.0660%37.059465.8317%1.4482%
Difference-1-16.8618-0.4947%-400000-13000000-3.3390-4.0660%-20.2007-1.9428%-1.9428%

Known prime factors (1 factor, 85.8 bits, 0.00015125% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
56726627672048818646804521913710712685.797592357464376301205
34 × 5 × 103 × 191 × 199 × 7879 × 47417
2012-07-16787947417245,3180.03080.0493

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-07-16T17:28:00Jwb52zClay2685.797-240.5-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.11527e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.11527e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.23055e-5--
2000-06-28T00:00:00ANONYMOUSv4_computers21256--0.000--
2000-06-29T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-30T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-11-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2004-01-27T00:00:00ThomRuleyv4_computers21261--0.005--
2004-02-23T00:00:00ThomRuleyv4_computers21261--0.005--
Missing TF 61 - 62
Missing TF 62 - 63
2008-08-06T00:17:00Sturle Sundehomilius.ifi263264--0.035--
2008-08-08T04:55:00Sturle Sunderodolfo.ifi264265--0.066--
2008-08-08T16:44:00Sturle Sundeiago.ifi265266--0.132--
2008-08-09T23:11:00James HeinrichWHS266267--0.263--
2009-06-11T20:35:00freeshowUSB-key267268--0.527--
2011-04-24T07:28:00Per Jessenquincy268269--1.054--
2011-06-11T19:23:00steinrarManual testing269270--2.108--
2011-12-23T19:35:00Adam StinchcombeManual testing270271--4.215--
2012-07-06T01:45:00Jerry HallettManual testing271272--8.431--


ECM factoring results:
No ECM results for M56726627


Lucas-Lehmer results:
No L-L results for M56726627


PRP results:
No PRP results for M56726627


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
261
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-07-16T17:28:11+00:00