is 2 53763343 - 1
has 16184379 decimal digits
takes 106.220 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
Actual2681.108761.7647 %----1.108761.7647 %
Target27335.579064.3836 %3600006000000010.33993.9187 %45.918965.7793 %
Difference-5-34.4703-2.6189 %-360000-60000000-10.3399-3.9187 %-44.8102-4.0146 %

Known prime factors (1 factor, 71.7 bits, 0.00013340% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5376334338901968932525541148232271.72036178896960077
19 × 223 × 44071 × 193751
2011-03-204407119375117.2430.14960.2569

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-03-20S36049Wolle42271.7201.8190.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.23000e-5
2000-03-01ANONYMOUSv4_computers212544.46000e-5
2000-05-24ANONYMOUSv4_computers212560.000
2001-08-24ANONYMOUSv4_computers212570.000
2002-07-27ANONYMOUSv4_computers212580.001
2004-06-041997rj7v4_computers212600.001
2007-09-131997rj7v4_computers212630.018
2008-07-01ANONYMOUSManual testing212640.035
2008-12-21tmorrowteapot2642660.208
2008-12-23tmorrowteapot2662670.278
2009-05-03arnaudSRV-1402672680.556


ECM factoring results:
No ECM results for M53763343


Lucas-Lehmer results:
No L-L results for M53763343


PRP results:
No PRP results for M53763343


CERT results:
No CERT results for M53763343


P-1 factor-bounds graph:
103
104
105
103
104
105
106
TF factor-bounds graph:
268
267
266
264
263
260
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