is 2 55689511 - 1
has 16764214 decimal digits
takes 118.031 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
Actual27217.172663.8889%----17.172663.8889%0.0000%
PrimeNet2692.143862.3188%240000100000002.37175.3639%4.515564.3400%2.0212%
GPU7227334.348464.3836%360000120000003.05533.9363%37.403765.7855%1.4020%
Difference-1-17.1758-0.4947%-360000-12000000-3.0553-3.9363%-20.2311-1.8966%-1.8966%

Known prime factors (1 factor, 76.3 bits, 0.00013698% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
55689511918320362011279922050172376.281824500292354228
22 × 7 × 2927 × 49081 × 204973
2012-05-0849081204973368.080.17690.3070

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-05-08T13:40:00Jwb52zClay2376.281-236.1-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-15T00:00:00ANONYMOUSv4_computers21253--2.15467e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.15467e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers21254--4.30933e-5--
2000-06-11T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-30T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-08-10T00:00:00ANONYMOUSv4_computers21258--0.001--
2008-09-14T23:25:00ANONYMOUSManual testing21264--0.064--
2009-01-05T03:40:00Arjen RodenhuisLaptop264265--0.067--
2009-01-05T16:59:00Arjen RodenhuisLaptop265266--0.134--
2009-01-06T21:08:00helicompollux266267--0.268--
2009-05-18T04:54:00tmorrowteapot267268--0.537--
2011-04-13T12:59:00Helmut Zulusw-cristina268269--1.073--
2011-06-04T19:06:00steinrarManual testing269270--2.147--
2012-04-28T22:36:00XyzzyManual testing270271--4.294--
2012-04-28T22:36:00XyzzyManual testing271272--8.588--


ECM factoring results:
No ECM results for M55689511


Lucas-Lehmer results:
No L-L results for M55689511


PRP results:
No PRP results for M55689511


P-1 factor-bounds graph:
103
104
105
103
104
105
106
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-05-08T13:40:21+00:00