is 257138287-1
has 17,200,339 decimal digits
takes 121.101 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
Actual27333.477564.3836%----33.477564.3836%2.0647%
PrimeNet2692.089462.3188%260,00011,000,0002.59735.5307%4.686767.8495%5.5307%
GPU7227333.477564.3836%400,00013,000,0003.33904.0697%36.816468.4532%4.0697%
Difference----400,000-13,000,000-3.3390-4.0697%-3.3390-4.0697%-4.0697%

Known prime factors (1 factor, 123.1 bits, 0.00021540% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
571382871122811066879812159822544189635425852938123.07898253826447388259979035089872
24 × 89 × 743 × 991 × 3121 × 64781 × 128669 × 3602149
128,6693,602,1492012-08-053.208e+90.97701.1265

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-08-05T18:09:00TheJudgerManual testing-112,281,106,687,981,216-982,254,418,963,542,52838123.078-242.2-nan%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-08T00:00:00ANONYMOUSv4_computers?253--2.10003e-5--
2000-01-04T00:00:00ANONYMOUSv4_computers?253--2.10003e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers?254--4.20007e-5--
2000-06-26T00:00:00ANONYMOUSv4_computers?256--0.000--
2000-06-28T00:00:00ANONYMOUSv4_computers?256--0.000--
2000-06-29T00:00:00ANONYMOUSv4_computers?256--0.000--
2001-09-22T00:00:00ANONYMOUSv4_computers?257--0.000--
2002-10-26T00:00:00ANONYMOUSv4_computers?258--0.001--
2003-07-30T00:00:00Team Prime Ribv4_computers?260--0.001--
2008-09-10T19:40:00Sturle Sundejodel.ifi263264--0.034--
2008-09-11T03:33:00Sturle Sundewright.ifi264265--0.065--
2008-09-12T02:36:00Sturle Sundenardi.ifi265266--0.131--
2008-09-13T01:53:00Sturle Sundehummel.ifi266267--0.262--
2009-09-24T15:03:00subgeniusHDO-c1267268--0.523--
2011-07-06T12:53:00steinrarManual testing268269--1.046--
2011-07-06T12:53:00steinrarManual testing269270--2.093--
2011-07-06T12:53:00steinrarManual testing270271--4.185--
2012-05-24T07:46:00bcp19Manual testing271272--8.370--
2012-08-03T17:19:00Tom DuellManual testing272273--16.74--


ECM factoring results:
Exponent "57138287" not found


Lucas-Lehmer results:
Exponent "57138287" not found


PRP results:
Exponent "57138287" not found


P-1 factor-bounds graph:
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
260
258
257
256
254
253
250
260
270
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290
2100
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2130
Last modified: 2012-08-05T18:09:31+00:00