is 2 55088729 - 1
has 16583360 decimal digits
takes 116.758 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
Actual2718.678363.3803%----8.678363.3803%0.0000%
PrimeNet2692.167262.3188%240000100000002.37175.3566%4.538964.3373%2.0184%
GPU7227334.723064.3836%360000120000003.05533.9309%37.778365.7836%1.4000%
Difference-2-26.0446-1.0033%-360000-12000000-3.0553-3.9309%-29.0999-2.4033%-2.4033%

Known prime factors (1 factor, 72.4 bits, 0.00013138% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5508872961340621075268462341932272.37755674384024424
23 × 11 × 117109 × 5402347
2012-03-05117109540234731.5811.24481.6894

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-03-05T06:06:00Jwb52zClay2272.377-233.5-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-01T00:00:00ANONYMOUSv4_computers21253--2.17816e-5--
2000-01-12T00:00:00ANONYMOUSv4_computers21253--2.17816e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers21254--4.35633e-5--
2000-05-24T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-09-10T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-06-29T00:00:00ANONYMOUSv4_computers21258--0.001--
2008-08-04T02:17:00ANONYMOUSManual testing21264--0.065--
2009-01-01T19:54:00borkencodeC2F70236C264265--0.068--
2009-01-03T21:03:00borkencodeC2F70236C265266--0.136--
2009-01-05T06:18:00borkencodeC2F70236C266267--0.271--
2009-11-12T20:32:00GrunwalderGIMPcompute-0-9267268--0.543--
2011-04-07T03:29:00PrimeCruncherApollo7268269--1.085--
2011-05-28T07:41:00forrest-lumpkinMac_mini269270--2.170--
2011-09-11T01:22:00TheJudgerManual testing270271--4.341--


ECM factoring results:
No ECM results for M55088729


Lucas-Lehmer results:
No L-L results for M55088729


PRP results:
No PRP results for M55088729


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
271
270
269
268
267
266
265
264
258
257
256
254
253
250
260
270
280
290
2100
Last modified: 2012-03-05T06:06:40+00:00