is 254123281-1
has 16,292,732 decimal digits
takes 106.931 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
Actual2681.101361.7647%----1.101361.7647%-0.5541%
PrimeNet2692.205862.3188%240,00010,000,0002.21095.3449%4.416767.6637%5.3449%
GPU7227335.342464.3836%360,00012,000,0002.84813.9220%38.190468.3056%3.9220%
Difference-5-34.2411-2.6189%-360,000-12,000,000-2.8481-3.9220%-37.0892-6.5409%-6.5409%

Known prime factors (1 factor, 123.3 bits, 0.00022787% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
541232811338851989774818109660413377043132367938123.332123685405341078463966404159519
3 × 659 × 21611 × 24103 × 255877 × 557831 × 841457
557,831841,4572011-10-112.428e+91.64233.2523

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2011-10-11T04:22:00kagakubumorilab_i3-133,885,198,977,481,808-966,041,337,704,313,21638123.332-213.9-nan%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-08T00:00:00ANONYMOUSv4_computers?253--2.21702e-5--
2000-01-12T00:00:00ANONYMOUSv4_computers?253--2.21702e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers?254--4.43404e-5--
2000-05-24T00:00:00ANONYMOUSv4_computers?256--0.000--
2001-08-18T00:00:00ANONYMOUSv4_computers?257--0.000--
2002-08-24T00:00:00ANONYMOUSv4_computers?258--0.001--
2003-08-08T00:00:00oerwinv4_computers?262--0.006--
2008-05-10T00:00:00ANONYMOUSv4_computers?263--0.018--
2008-12-08T00:58:001997rj7Manual testing?264--0.036--
2009-02-23T03:29:00SDSA264265--0.069--
2009-02-24T02:19:00SDSA265266--0.138--
2009-02-25T09:49:00SDSA266267--0.276--
2009-07-14T15:35:00Kikamonju267268--0.552--


ECM factoring results:
Exponent "54123281" not found


Lucas-Lehmer results:
Exponent "54123281" not found


PRP results:
Exponent "54123281" not found


P-1 factor-bounds graph:
TF factor-bounds graph:
268
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Last modified: 2011-10-11T04:22:22+00:00