is 2 56907583 - 1
has 17130890 decimal digits
takes 120.612 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
Actual27216.805063.8889%----16.805063.8889%0.0000%
PrimeNet2692.097962.3188%240000110000002.53925.4713%4.637164.3805%2.0617%
GPU7227333.613264.3836%400000130000003.33904.0676%36.952165.8323%1.4487%
Difference-1-16.8081-0.4947%-400000-13000000-3.3390-4.0676%-20.1471-1.9434%-1.9434%

Known prime factors (1 factor, 72.7 bits, 0.00012782% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5690758378780876903905297909772272.73869218259457536
29 × 35 × 7 × 23 × 3455561
2012-07-18512345556131.7800.58011.0806

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-07-18T11:38:00Jwb52zClay2272.738-241.2-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.10855e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.10855e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.21709e-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--
2002-11-16T00:00:00ANONYMOUSv4_computers21258--0.001--
2005-01-20T00:00:00ThomRuleyv4_computers21262--0.011--
Missing TF 62 - 63
2008-08-24T17:32:00Sturle Sundeinteravia.ifi263264--0.035--
2008-08-26T19:40:00Sturle Sundeinteravia.ifi264265--0.066--
2008-08-27T08:23:00Sturle Sundekinner.ifi265266--0.131--
2008-08-28T00:36:00Sturle Sundekinner.ifi266267--0.263--
2009-11-21T06:57:00Sturle Sundegoomba.ifi267268--0.525--
2011-04-22T13:15:00Helmut Zulusedith3268269--1.051--
2011-06-17T18:19:00blackivoryavg-corc269270--2.101--
2011-09-07T04:16:00Helmut KirrmaierX4270RH5270271--4.202--
2012-05-11T00:49:00LaurVManual testing271272--8.404--


ECM factoring results:
No ECM results for M56907583


Lucas-Lehmer results:
No L-L results for M56907583


PRP results:
No PRP results for M56907583


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
262
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-07-18T11:38:56+00:00