is 2 58670671 - 1
has 17661632 decimal digits
takes 130.339 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
Actual2670.506561.1940 %----0.506561.1940 %
Target27332.603164.3836 %4000007000000013.50334.1414 %46.106465.8586 %
Difference-6-32.0966-3.1895 %-400000-70000000-13.5033-4.1414 %-45.6000-4.6646 %

Known prime factors (1 factor, 68.6 bits, 0.00011694% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
586706714496120817060396044892168.6073831659618364
22 × 32 × 1949 × 6101 × 8951
2008-11-03610189511.78870.02020.0400

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2008-11-03S503796v4_computers2168.6073.7280.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-11-18S503796v4_computers??
68.607
21
1999-12-23ANONYMOUSv4_computers212532.05000e-5
2000-02-09ANONYMOUSv4_computers212544.09000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-07-17ANONYMOUSv4_computers212570.000
2002-10-26ANONYMOUSv4_computers212580.001
2003-07-30ANONYMOUSv4_computers212590.001
2003-11-161997rj7v4_computers212600.001
2022-06-27LordJuliusManual testing260263
2008-11-01Sturle Sundenouchcraft.ifi2632640.032


ECM factoring results:
No ECM results for M58670671


Lucas-Lehmer results:
No L-L results for M58670671


PRP results:
No PRP results for M58670671


CERT results:
No CERT results for M58670671


P-1 factor-bounds graph:
102
103
104
102
103
104
TF factor-bounds graph:
264
263
260
259
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