is 2 53620783 - 1
has 16141465 decimal digits
takes 105.938 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
Actual2681.111661.7647 %----1.111661.7647 %
Target27335.673664.3836 %3600006000000010.33993.9174 %46.013565.7788 %
Difference-5-34.5620-2.6189 %-360000-60000000-10.3399-3.9174 %-44.9019-4.0141 %

Known prime factors (1 factor, 74.0 bits, 0.00013805% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
53620783192280689832940534985192374.026179296794148773
3 × 7 × 127 × 9227 × 7285997
2011-01-169227728599795.0271.16222.1240

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-01-16James HeinrichQ66002374.0264.8370.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.24000e-5
2000-03-01ANONYMOUSv4_computers212544.48000e-5
2000-05-24ANONYMOUSv4_computers212560.000
2001-08-18ANONYMOUSv4_computers212570.000
2002-07-20ANONYMOUSv4_computers212580.001
2004-06-041997rj7v4_computers212600.001
2007-10-291997rj7v4_computers212630.018
2008-09-01ANONYMOUSManual testing212640.035
2008-12-20Sturle Sundeniemeyer.ifi2642650.070
2009-01-04KYOJI_KAMEI2652660.139
2009-03-11glennpatglenn11-PC642662670.279
2009-05-05arnaudSRV-3302672680.557


ECM factoring results:
No ECM results for M53620783


Lucas-Lehmer results:
No L-L results for M53620783


PRP results:
No PRP results for M53620783


CERT results:
No CERT results for M53620783


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
268
267
266
265
264
263
260
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00