is 2 57964967 - 1
has 17449194 decimal digits
takes 122.854 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
Actual27333.000064.3836 %----33.000064.3836 %
Target27333.000064.3836 %4000006500000012.04574.0770 %45.045765.8356 %
Difference----400000-65000000-12.0457-4.0770 %-12.0457-1.4521 %

Known prime factors (1 factor, 75.3 bits, 0.00012986% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
57964967455985814561247421251772375.271393328796824164
22 × 3 × 257 × 213217 × 598163
2012-09-28213217598163223.560.71971.3336

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-09-28oodaira052375.2713.3770.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.07000e-5
2000-03-08ANONYMOUSv4_computers212544.14000e-5
2000-06-23ANONYMOUSv4_computers212560.000
2001-09-30ANONYMOUSv4_computers212570.000
2002-11-24ANONYMOUSv4_computers212580.001
2003-11-08Team Prime Ribv4_computers212600.001
2022-06-29LordJuliusManual testing260263
2008-10-25Sturle Sundekinner.ifi2632640.032
2009-01-10Penguin66coldcomputing2642650.064
2009-03-28ANONYMOUS2652660.129
2009-04-02ANONYMOUS2662670.258
2009-07-31ANONYMOUS2672680.516
2011-10-03RobertNManual testing2682717.219
2012-06-16Jerry HallettManual testing2712728.251
2012-09-06Craig MeyersManual testing27227316.50


ECM factoring results:
No ECM results for M57964967


Lucas-Lehmer results:
No L-L results for M57964967


PRP results:
No PRP results for M57964967


CERT results:
No CERT results for M57964967


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
273
272
271
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