is 2 55596017 - 1
has 16736069 decimal digits
takes 117.833 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27334.406164.3836 %----34.406164.3836 %
Target27334.406164.3836 %3600006000000011.09223.9355 %45.498465.7852 %
Difference----360000-60000000-11.0922-3.9355 %-11.0922-1.4017 %

Known prime factors (1 factor, 74.8 bits, 0.00013449% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
55596017322588952422174507672812374.772290118761944920
23 × 32 × 5 × 29 × 193 × 3391 × 42461
2012-05-1933914246185.7970.01700.0212

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-05-19Jerry HallettP1Main2374.7721.5980.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-15ANONYMOUSv4_computers212532.16000e-5
2000-03-01ANONYMOUSv4_computers212544.32000e-5
2000-05-31ANONYMOUSv4_computers212560.000
2001-09-30ANONYMOUSv4_computers212570.000
2002-08-03ANONYMOUSv4_computers212580.001
2008-08-04ANONYMOUSManual testing212640.034
2009-01-07noobahoiatomix2642650.067
2009-01-07Charles SpaltonHotSpare22652660.134
2009-01-10Charles SpaltonHotSpare22662670.269
2009-05-18majorjameshannahHome2672680.538
2011-04-08dsls12682691.075
2011-05-31Tom DuellManual testing2692702.151
2012-04-12Craig MeyersManual testing27027212.90
2012-05-03Craig MeyersManual testing27227317.20


ECM factoring results:
No ECM results for M55596017


Lucas-Lehmer results:
No L-L results for M55596017


PRP results:
No PRP results for M55596017


CERT results:
No CERT results for M55596017


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
273
272
270
269
268
267
266
265
264
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00