is 2 54057217 - 1
has 16272844 decimal digits
takes 106.801 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
Actual2718.843963.3803%----8.843963.3803%0.0000%
PrimeNet2692.208562.3188%240000100000002.21095.3440%4.419464.3325%2.0137%
GPU7227335.385564.3836%360000120000002.84813.9214%38.233665.7802%1.3967%
Difference-2-26.5416-1.0033%-360000-12000000-2.8481-3.9214%-29.3897-2.4000%-2.4000%

Known prime factors (1 factor, 76.5 bits, 0.00014148% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
540572171052184312892671561901672476.478973213542321899
313 × 439 × 4283 × 1653679
2012-02-0542831653679525.710.26970.4821

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-02-05T06:28:00Jwb52zClay2476.478-213.6-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-01T00:00:00ANONYMOUSv4_computers21253--2.21973e-5--
2000-01-12T00:00:00ANONYMOUSv4_computers21253--2.21973e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers21254--4.43946e-5--
2000-05-24T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-08-18T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-08-17T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-21T00:00:00oerwinv4_computers21262--0.011--
2008-11-17T00:34:001997rj7Manual testing21264--0.066--
2009-02-21T20:44:00ObscuritiOffice_PC264265--0.069--
2009-02-23T13:15:00ObscuritiOffice_PC265266--0.138--
2009-02-26T11:22:00ObscuritiOffice_PC266267--0.276--
2009-05-11T17:56:00HBendtzHAL9006267268--0.553--
2009-05-12T04:23:00HBendtzHAL9006268269--1.106--
2011-05-21T16:40:00gbvalorveleold269270--2.212--
2011-09-08T01:43:00XyzzyManual testing270271--4.424--


ECM factoring results:
No ECM results for M54057217


Lucas-Lehmer results:
No L-L results for M54057217


PRP results:
No PRP results for M54057217


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
271
270
269
268
267
266
265
264
262
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-02-05T06:28:01+00:00