is 2 58310149 - 1
has 17553104 decimal digits
takes 123.585 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
Actual2718.198963.3803 %----8.198963.3803 %
Target27332.804764.3836 %4000006500000012.04574.0801 %44.850365.8367 %
Difference-2-24.6058-1.0033 %-400000-65000000-12.0457-4.0801 %-36.6514-2.4564 %

Known prime factors (1 factor, 81.9 bits, 0.00014049% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5831014945669911080731760218919612581.91839161202521307020
22 × 5 × 7 × 11 × 4243 × 31177 × 192233
2012-02-193117719223313,9980.12280.1950

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-02-19TheJudgerManual testing2581.9182.4590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.06000e-5
2000-02-09ANONYMOUSv4_computers212544.12000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-07-17ANONYMOUSv4_computers212570.000
2002-09-22ANONYMOUSv4_computers212580.001
2003-07-30ANONYMOUSv4_computers212590.001
2003-12-02ANONYMOUSv4_computers212610.003
2022-06-27LordJuliusManual testing261263
2008-10-28X_FISHE52002632660.224
2008-10-29X_FISHE52002662670.256
2009-06-01RoaldSmXP742672680.513
2011-05-04ANONYMOUS2682691.025
2011-06-24firereddont42692702.050
2011-10-02GregManual testing2702714.101


ECM factoring results:
No ECM results for M58310149


Lucas-Lehmer results:
No L-L results for M58310149


PRP results:
No PRP results for M58310149


CERT results:
No CERT results for M58310149


P-1 factor-bounds graph:
103
104
105
103
104
105
106
TF factor-bounds graph:
271
270
269
268
267
266
263
261
259
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