is 2 56570351 - 1
has 17029373 decimal digits
takes 119.898 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
Actual27216.905263.8889%----16.905263.8889%0.0000%
PrimeNet2692.110462.3188%240000110000002.53925.4673%4.649664.3790%2.0601%
GPU7227333.813564.3836%400000130000003.33904.0646%37.152565.8312%1.4477%
Difference-1-16.9083-0.4947%-400000-13000000-3.3390-4.0646%-20.2473-1.9423%-1.9423%

Known prime factors (1 factor, 77.3 bits, 0.00013668% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
565703511890586274605332298093132477.3231671004546715056
24 × 7 × 73 × 193 × 16369 × 64693
2012-07-131636964693957.520.05840.1024

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-07-13T12:20:00Jwb52zClay2477.323-239.8-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.12112e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.12112e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.24223e-5--
2000-06-11T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-22T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-10-19T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-30T00:00:00ThomRuleyv4_computers21260--0.003--
2004-01-27T00:00:00ThomRuleyv4_computers21261--0.005--
2004-02-07T00:00:00ThomRuleyv4_computers21261--0.005--
2004-02-23T00:00:00ThomRuleyv4_computers21263--0.028--
2004-03-16T00:00:00ThomRuleyv4_computers21263--0.028--
Missing TF 63 - 64
2008-03-27T17:08:00Sturle Sundekinner.ifi264265--0.066--
2008-03-29T11:56:00arnaudSPR07265266--0.132--
2008-04-01T01:38:00arnaudSPR07266267--0.264--
2009-05-22T05:04:00Cereal Businessmary267268--0.528--
2011-08-30T11:59:00sannerud.comJimEmcLap268269--1.057--
2011-09-05T14:55:00GrunwalderGIMPLyc-i7269270--2.114--
2011-09-25T01:30:00tmorrowteapot270271--4.227--
2012-07-04T11:45:00Jerry HallettManual testing271272--8.454--


ECM factoring results:
No ECM results for M56570351


Lucas-Lehmer results:
No L-L results for M56570351


PRP results:
No PRP results for M56570351


P-1 factor-bounds graph:
103
104
105
103
104
105
TF factor-bounds graph:
272
271
270
269
268
267
266
265
263
261
260
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-07-13T12:20:31+00:00