is 2 53474567 - 1
has 16097449 decimal digits
takes 105.649 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
Actual2681.114661.7647 %----1.114661.7647 %
Target27335.771164.3836 %3600006000000010.33993.9160 %46.111065.7783 %
Difference-5-34.6565-2.6189 %-360000-60000000-10.3399-3.9160 %-44.9964-4.0136 %

Known prime factors (1 factor, 80.9 bits, 0.00015120% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5347456721863785832496120382150012580.85520443163039072500
22 × 54 × 43 × 251 × 3407 × 222379
2010-11-2634072223795,986.60.04390.0648

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-11-26vapaddynita2580.8551.9510.000%


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
2001-08-12ANONYMOUSv4_computers212570.000
2002-07-14ANONYMOUSv4_computers212580.001
2004-05-111997rj7v4_computers212600.001
2007-09-131997rj7v4_computers212630.018
2008-07-01ANONYMOUSManual testing212640.035
2009-02-18borkencodeCFF2DC1CD2642650.070
2009-02-19borkencodeCFF2DC1CD2652660.140
2009-02-20borkencodeCFF2DC1CD2662670.279
2009-06-30steinrarlianli2672680.559


ECM factoring results:
No ECM results for M53474567


Lucas-Lehmer results:
No L-L results for M53474567


PRP results:
No PRP results for M53474567


CERT results:
No CERT results for M53474567


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
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
290
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Last modified: 2024-03-13T02:15:48+00:00