is 2 57676979 - 1
has 17362501 decimal digits
takes 122.243 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
Actual27333.164864.3836%----33.164864.3836%0.0000%
PrimeNet2692.069962.3188%260000110000002.59735.5371%4.667264.4053%2.0864%
GPU7227333.164864.3836%400000130000003.33904.0745%36.503865.8347%1.4512%
Difference----400000-13000000-3.3390-4.0745%-3.3390-1.4512%-1.4512%

Known prime factors (1 factor, 93.5 bits, 0.00016209% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
57676979138988678367259709435804679992993.489120488868155923795381
7 × 23 × 107 × 41777 × 65587 × 2552597		2012-09-1665587255259759,177,0150.61800.7983

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-09-16T11:04:00Jwb52zClay2993.489-244.5-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.08042e-5--
2000-03-08T00:00:00ANONYMOUSv4_computers21254--4.16084e-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--
2002-12-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-09-21T00:00:00Team Prime Ribv4_computers21260--0.003--
Missing TF 60 - 61
Missing TF 61 - 62
Missing TF 62 - 63
2009-01-10T07:08:00Sturle Sunderodolfo.ifi263264--0.034--
2009-01-10T16:09:00Sturle Sunderodolfo.ifi264265--0.065--
2009-01-11T15:18:00Yannic SpiethQuadi265266--0.130--
2009-01-12T18:50:00Sturle Sundeginjtje.ifi266267--0.259--
2009-05-30T00:05:00James Hintzsheryl267268--0.518--
2011-04-29T23:16:00searchingforprimesSuperP6T7268269--1.036--
2011-10-21T20:44:00XyzzyManual testing269270--2.073--
2011-10-21T20:44:00XyzzyManual testing270271--4.146--
2012-07-14T13:02:00Kevin JagetManual testing271272--8.292--
2012-08-31T14:35:00Jerry HallettManual testing272273--16.58--


ECM factoring results:
No ECM results for M57676979


Lucas-Lehmer results:
No L-L results for M57676979


PRP results:
No PRP results for M57676979


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
260
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-09-16T11:04:29+00:00