is 251755503-1
has 15,579,959 decimal digits
takes 99.150 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
Actual2681.151761.7647%----1.151761.7647%-0.5541%
PrimeNet2692.306762.3188%220,0009,000,0001.93995.1542%4.246767.4730%5.1542%
GPU7227336.959264.3836%340,00011,000,0002.55783.8029%39.517068.1865%3.8029%
Difference-5-35.8076-2.6189%-340,000-11,000,000-2.5578-3.8029%-38.3654-6.4218%-6.4218%

Known prime factors (1 factor, 117.7 bits, 0.00022750% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
5175550327796650849062101657733686641656543936117.7422685381190195572213618877073
31 × 61 × 151 × 5779 × 5791 × 7411 × 101363 × 374089
101,363374,0892010-03-303.413e+90.32280.5730

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2010-03-30T13:05:001997rj7Manual testing-277,966,508,490,621,024-577,336,866,416,565,37636117.742-198.3-nan%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-01-04T00:00:00ANONYMOUSv4_computers?253--2.31844e-5--
2000-02-16T00:00:00ANONYMOUSv4_computers?254--4.63689e-5--
2000-04-27T00:00:00ANONYMOUSv4_computers?256--0.000--
2001-05-27T00:00:00ANONYMOUSv4_computers?257--0.000--
2002-03-16T00:00:00ANONYMOUSv4_computers?258--0.001--
2003-11-28T00:00:00ANONYMOUSv4_computers?260--0.001--
2008-12-08T11:36:00The Treachersg0ods_PIII263264--0.038--
2008-12-09T16:39:00stevecodyMacPro264265--0.072--
2008-12-10T20:20:00stevecodyMacPro265266--0.144--
2008-12-12T20:00:00stevecodyMacPro266267--0.289--
2009-10-02T13:21:00piero zamain_Stud267268--0.578--


ECM factoring results:
Exponent "51755503" not found


Lucas-Lehmer results:
Exponent "51755503" not found


PRP results:
Exponent "51755503" not found


P-1 factor-bounds graph:
TF factor-bounds graph:
268
267
266
265
264
260
258
257
256
254
253
250
260
270
280
290
2100
2110
2120
Last modified: 2010-03-30T13:05:52+00:00