is 2 53501347 - 1
has 16105511 decimal digits
takes 105.702 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
Actual2681.114161.7647 %----1.114161.7647 %
Target27335.753264.3836 %3600006000000010.33993.9163 %46.093165.7784 %
Difference-5-34.6391-2.6189 %-360000-60000000-10.3399-3.9163 %-44.9790-4.0137 %

Known prime factors (1 factor, 71.8 bits, 0.00013421% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5350134741227521159889741217292271.80438529423530112
27 × 3 × 113 × 11243 × 78977
2010-12-26112437897716.0410.04280.0655

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-12-26Matt Perryrpbmw150992271.8041.9360.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-08ANONYMOUSv4_computers212532.24000e-5
2000-03-01ANONYMOUSv4_computers212544.49000e-5
2000-05-24ANONYMOUSv4_computers212560.000
2001-08-18ANONYMOUSv4_computers212570.000
2002-07-14ANONYMOUSv4_computers212580.001
2004-05-111997rj7v4_computers212600.001
2007-09-131997rj7v4_computers212630.018
2008-07-14ANONYMOUSManual testing212640.035
2009-02-24Steve Rogersonofficedesktop2642650.070
2009-03-02Steve Rogersonofficedesktop2652660.140
2009-03-03Net_ForceKathy_PC2662670.279
2009-04-28Paladinquad2672680.559


ECM factoring results:
No ECM results for M53501347


Lucas-Lehmer results:
No L-L results for M53501347


PRP results:
No PRP results for M53501347


CERT results:
No CERT results for M53501347


P-1 factor-bounds graph:
103
104
105
103
104
105
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