is 2 53402663 - 1
has 16075804 decimal digits
takes 102.306 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
Actual2681.116161.7647 %----1.116161.7647 %
Target27335.819364.3836 %3600006000000010.02613.9154 %45.845465.7781 %
Difference-5-34.7031-2.6189 %-360000-60000000-10.0261-3.9154 %-44.7293-4.0134 %

Known prime factors (1 factor, 95.3 bits, 0.00017840% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
53402663476970275801490824693676960492995.268446579111421363785448
23 × 3 × 2683 × 35491 × 240811 × 811469
2010-11-12240811811469249,377,3140.75531.3614

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-11-12James Heinrichi7-9202995.2685.1410.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.25000e-5
2000-03-01ANONYMOUSv4_computers212544.49000e-5
2000-05-24ANONYMOUSv4_computers212560.000
2001-08-04ANONYMOUSv4_computers212570.000
2002-07-06ANONYMOUSv4_computers212580.001
2004-05-111997rj7v4_computers212600.001
2007-10-171997rj7v4_computers212630.018
2008-10-14ANONYMOUSManual testing212640.035
2008-12-23ANONYMOUS2642650.070
2008-12-23Sturle Sunderodolfo.ifi2652670.420
2009-04-30jfarekCarnegie32672680.560


ECM factoring results:
No ECM results for M53402663


Lucas-Lehmer results:
No L-L results for M53402663


PRP results:
No PRP results for M53402663


CERT results:
No CERT results for M53402663


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
268
267
265
264
263
260
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00