is 2 62092307 - 1
has 18691647 decimal digits
takes 145.859 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
Actual27330.806564.3836 %----30.806564.3836 %
Target27461.615864.8649 %4000006500000013.35073.7225 %74.966566.1728 %
Difference-1-30.8093-0.4813 %-400000-65000000-13.3507-3.7225 %-44.1600-1.7892 %

Known prime factors (1 factor, 79.6 bits, 0.00012816% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
620923079035872341082721854300392479.5807276160910789417
3 × 1439 × 288907 × 5833943
2013-03-1128890758339433,891.12.01312.0221

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2013-03-11kdgehmani5-2500k_22479.5804.5650.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-06-30Gordon Spencev4_computers212590.001
2004-10-18Thav4_computers212610.002
2022-03-29LordJuliusManual testing261263
2008-12-28DerekDerek_Desk2632640.032
2009-02-19Geoff WingD2642650.060
2009-02-27Geoff WingD2652660.120
2009-03-07ANONYMOUSHome_CPU2662670.241
2009-03-12RoaldSmXP152672680.481
2009-09-26Sturle Sundendezi.ifi2682690.963
2012-07-21Craig MeyersManual testing26927328.88


ECM factoring results:
No ECM results for M62092307


Lucas-Lehmer results:
No L-L results for M62092307


PRP results:
No PRP results for M62092307


CERT results:
No CERT results for M62092307


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
273
269
268
267
266
265
264
263
261
259
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00