is 2 2852429 - 1
has 858667 decimal digits
takes 0.220 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L099A44ECE99C8567double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26710.417167.1642%20482048000.00150.3020%10.418567.2633%0.0992%
PrimeNet2590.026962.7119%130002400000.00282.9933%0.029863.8280%1.1161%
GPU722630.559565.0794%160002600000.00331.8293%0.562865.7182%0.6388%
Difference+4+9.8575+2.0848%-13952-55200-0.0018-1.5273%+9.8557+1.5452%+1.5452%

Known prime factors (1 factor, 66.0 bits, 0.00231373% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2852429736539799904157809272065.99712910747294747
19 × 149 × 49037 × 93001
2009-04-0449037930013.82050.00580.0112

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-11-28T00:00:00ANONYMOUSv4_computers2048204800---0.001--0.302%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-02-13T06:21:00Sturle Sundegolan.ifi260261--0.054--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-09-14T00:00:00ANONYMOUSv4_computers099A44ECE99C85670.220


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-22T18:04:06Oliver KruseGTX-1
73653979990415780927
49A0C5F6B6B6EE__no
2017-12-07T15:00:47kkmrkkblmbrbkc4.xlarge
73653979990415780927
49A0C5F6B6B6EE__no


P-1 factor-bounds graph:
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
102
103
104
105
102
103
104
105
106
TF factor-bounds graph:
267
261
250
260
270
280
290
2100
Last modified: 2017-12-07T15:00:47+00:00