is 2 57262651 - 1
has 17237776 decimal digits
takes 121.365 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
Actual27216.700863.8889%----16.700863.8889%0.0000%
PrimeNet2692.084962.3188%260000110000002.59735.5322%4.682264.4034%2.0846%
GPU7227333.404764.3836%400000130000003.33904.0708%36.743765.8334%1.4499%
Difference-1-16.7039-0.4947%-400000-13000000-3.3390-4.0708%-20.0429-1.9445%-1.9445%

Known prime factors (1 factor, 78.6 bits, 0.00013729% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
572626514640661477823678741744792478.6194052084034516389
17 × 137 × 3187 × 3229 × 169067
2012-06-1932291690671,645.00.03770.0529

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-06-19T10:04:00Jwb52zClay2478.619-242.7-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.09547e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.19095e-5--
2000-06-28T00:00:00ANONYMOUSv4_computers21256--0.000--
2000-06-29T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-22T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-11-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-08-25T00:00:00Team Prime Ribv4_computers21260--0.003--
Missing TF 60 - 61
Missing TF 61 - 62
Missing TF 62 - 63
2008-09-21T23:11:00Sturle Sundeklengel.ifi263264--0.034--
2008-09-24T00:44:00Sturle Sundekraus.ifi264265--0.065--
2008-09-25T02:07:00Sturle Sundekraus.ifi265266--0.130--
2008-09-26T20:11:00Sturle Sundekraus.ifi266267--0.261--
2009-05-25T03:42:00Sturle Sundeletov.ifi267268--0.522--
2011-04-27T09:41:00Per Jessenbeaufort4268269--1.044--
2011-06-17T18:58:00shaugeManual testing269270--2.088--
2011-06-17T18:58:00shaugeManual testing270271--4.176--
2012-06-03T13:12:00bcp19Manual testing271272--8.352--


ECM factoring results:
No ECM results for M57262651


Lucas-Lehmer results:
No L-L results for M57262651


PRP results:
No PRP results for M57262651


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
260
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-06-19T10:04:00+00:00