is 272761677-1
has 21,903,448 decimal digits
takes 194.536 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
Actual275105.164064.0000%625,000625,0002.42301.5012%107.587065.5012%4.0726%
PrimeNet2703.284061.4286%320,00014,000,0004.13005.5371%7.414066.9656%5.5371%
GPU7227452.580863.5135%500,00017,000,0005.42344.1229%58.004267.6364%4.1229%
Difference+1+52.5832+0.4865%+125,000-16,375,000-3.0005-2.6217%+49.5828-2.1352%-2.1352%

Known prime factors (1 factor, 123.1 bits, 0.00016914% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
727616771114520989103878827656482739490117580138123.06876587087808866666697118782700
22 × 52 × 7 × 419 × 4021 × 25601 × 49499 × 92033 × 556817
92,033556,8172015-10-011.791e+90.45500.7261

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-10-01T18:04:23vats09I7I64_7625,000625,00038123.0682.423389.14.8461.501%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-22T09:30:00ANONYMOUSManual testing?264--0.027--
2010-05-26T18:31:00MarzbugLaptop264265--0.051--
2010-05-30T15:57:00ANONYMOUSCarnegie12265266--0.103--
2010-06-24T23:45:00Geoff WingC266267--0.205--
2010-07-13T00:10:00Geoff WingC267268--0.411--
2010-07-18T20:50:00SpeedwayIrina_AMD4200268269--0.822--
2012-10-02T09:53:00GrunwalderGIMPcompute-0-2269270--1.643--
2013-07-05T23:22:00SMoffatManual testing270271--3.286--
2015-03-15T14:44:00srow7Manual testing271272--6.573--
2015-09-20T15:09:00TheJudgerManual testing272273--13.15--
2015-09-20T15:09:00TheJudgerManual testing273274--26.29--
2015-09-20T15:09:00TheJudgerManual testing274275--52.58--


ECM factoring results:
Exponent "72761677" not found


Lucas-Lehmer results:
Exponent "72761677" not found


PRP results:
Exponent "72761677" not found


P-1 factor-bounds graph:
B1 = 625,000 (stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2015-10-01T18:04:23+00:00