is 2 53343377 - 1
has 16057957 decimal digits
takes 102.192 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
Actual2681.117461.7647 %----1.117461.7647 %
Target27335.859164.3836 %3600006000000010.02613.9148 %45.885265.7779 %
Difference-5-34.7417-2.6189 %-360000-60000000-10.0261-3.9148 %-44.7678-4.0132 %

Known prime factors (1 factor, 71.3 bits, 0.00013371% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5334337729533222254084397985772271.32327682182789144
23 × 3 × 13 × 83 × 191 × 5596729
2010-11-04191559672913.6660.84751.5820

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-11-04Craig Meyersmc-i02271.3234.7840.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.25000e-5
2000-03-01ANONYMOUSv4_computers212544.50000e-5
2000-05-24ANONYMOUSv4_computers212560.000
2001-08-04ANONYMOUSv4_computers212570.000
2002-06-29ANONYMOUSv4_computers212580.001
2004-05-111997rj7v4_computers212600.001
2007-09-131997rj7v4_computers212630.018
2008-09-08ANONYMOUSManual testing212640.035
2009-04-29bayannebilbo2642650.070
2009-05-06dmbleess2008desktop2652660.140
2009-05-21dmbleess2008desktop2662670.280
2009-05-25dmbleess2008desktop2672680.560


ECM factoring results:
No ECM results for M53343377


Lucas-Lehmer results:
No L-L results for M53343377


PRP results:
No PRP results for M53343377


CERT results:
No CERT results for M53343377


P-1 factor-bounds graph:
101
102
103
101
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
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Last modified: 2024-03-13T02:15:48+00:00