is 2 61330463 - 1
has 18462310 decimal digits
takes 144.070 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
Actual27331.189164.3836 %----31.189164.3836 %
Target27462.381264.8649 %4000006500000013.35073.7166 %75.731966.1707 %
Difference-1-31.1920-0.4813 %-400000-65000000-13.3507-3.7166 %-44.5428-1.7872 %

Known prime factors (1 factor, 90.2 bits, 0.00014710% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6133046314393582572811650672090070232890.21711734447995942612297
3 × 7 × 179 × 7691 × 447217 × 907589
2013-05-224472179075894,404,3231.60873.1002

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2013-05-22josiboziben2890.2174.0240.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-06-17Gordon Spencev4_computers212590.001
2003-10-23Gordon Spencev4_computers212600.001
2004-04-09ANONYMOUSv4_computers212620.005
2022-03-29LordJuliusManual testing262263
2009-06-21markroldgamer2632640.032
2009-09-29magicxhTHAPE2642650.061
2009-10-01Gymnasium_RaublingLZ12652660.122
2009-10-05jesterkingTpol2662670.244
2009-10-09jesterkingTpol2672680.487
2009-10-15jesterkingTpol2682690.975
2011-12-02phoenicisManual testing26927213.65
2013-01-28bcp19Manual testing27227315.60


ECM factoring results:
No ECM results for M61330463


Lucas-Lehmer results:
No L-L results for M61330463


PRP results:
No PRP results for M61330463


CERT results:
No CERT results for M61330463


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
273
272
269
268
267
266
265
264
263
262
260
259
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00