is 256382587-1
has 16,972,850 decimal digits
takes 119.500 GHz-days to do one L-L 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
Actual2718.479263.3803%----8.479263.3803%1.0614%
PrimeNet2692.117462.3188%240,00010,000,0002.37175.3722%4.489267.6910%5.3722%
GPU7227333.926264.3836%400,00013,000,0003.33904.0629%37.265168.4464%4.0629%
Difference-2-25.4470-1.0033%-400,000-13,000,000-3.3390-4.0629%-28.7859-5.0662%-5.0662%

Known prime factors (1 factor, 121.0 bits, 0.00021469% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
56382587275136326695332284835068104702652517737121.05024399051314844092275782601524
22 × 32 × 2339 × 2837 × 29611 × 71741 × 75367 × 637939
75,367637,9392012-01-032.431e+90.32580.4714

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-01-03T01:05:00jerbeastbuzzybeast-275,136,326,695,332,288-835,068,104,702,652,54437121.050-239.0-nan%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-15T00:00:00ANONYMOUSv4_computers?253--2.12818e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers?253--2.12818e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers?254--4.25636e-5--
2000-06-11T00:00:00ANONYMOUSv4_computers?256--0.000--
2001-09-22T00:00:00ANONYMOUSv4_computers?257--0.000--
2002-09-29T00:00:00ANONYMOUSv4_computers?258--0.001--
2008-07-21T06:20:00Sturle Sundefungo.ifi263264--0.035--
2008-07-21T14:18:00Sturle Sundeantonov.ifi264265--0.066--
2008-07-21T23:05:00Sturle Sundeantonov.ifi265266--0.133--
2008-07-22T09:02:00Sturle Sundeantonov.ifi266267--0.265--
2009-12-09T14:15:00Aleksey Osadchiysl_tlg267268--0.530--
2011-04-14T09:26:00GrunwalderGIMPcompute-0-0268269--1.060--
2011-06-15T03:38:00XyzzyManual testing269270--2.121--
2011-11-10T11:33:00dmaineManual testing270271--4.241--


ECM factoring results:
Exponent "56382587" not found


Lucas-Lehmer results:
Exponent "56382587" not found


PRP results:
Exponent "56382587" not found


P-1 factor-bounds graph:
TF factor-bounds graph:
271
270
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258
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253
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Last modified: 2012-01-03T01:05:55+00:00