is 2 55519141 - 1
has 16712927 decimal digits
takes 117.670 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
Actual27217.225363.8889%----17.225363.8889%0.0000%
PrimeNet2692.150462.3188%240000100000002.37175.3618%4.522164.3392%2.0204%
GPU7227334.453864.3836%360000120000003.05533.9348%37.509165.7850%1.4014%
Difference-1-17.2285-0.4947%-360000-12000000-3.0553-3.9348%-20.2838-1.8961%-1.8961%

Known prime factors (1 factor, 84.9 bits, 0.00015298% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
55519141368999067107809909261518012684.932332316981550389900
22 × 3 × 52 × 71 × 79 × 25171 × 7845947
2012-03-25251717845947104,4771.38682.4536

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-03-25T22:51:00Jwb52zClay2684.932-235.3-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-15T00:00:00ANONYMOUSv4_computers21253--2.16128e-5--
2000-01-19T00:00:00ANONYMOUSv4_computers21253--2.16128e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers21254--4.32256e-5--
2000-05-31T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-30T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-07-27T00:00:00ANONYMOUSv4_computers21258--0.001--
2008-07-02T00:22:00ANONYMOUSManual testing21264--0.064--
2009-03-09T15:57:00GleanerCGleanerC_06264265--0.067--
2009-03-10T07:35:00GleanerCGleanerC_06265266--0.135--
2009-03-11T11:59:00raymondfrtf021266267--0.269--
2009-05-16T02:08:00Sturle Sundemende.ifi267268--0.538--
2011-04-12T20:48:00rglarsonrgl_s_VOT132268269--1.077--
2012-03-21T06:47:00Craig MeyersManual testing269272--15.07--


ECM factoring results:
No ECM results for M55519141


Lucas-Lehmer results:
No L-L results for M55519141


PRP results:
No PRP results for M55519141


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
272
269
268
267
266
265
264
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-03-25T22:51:58+00:00