is 2 68101433 - 1
has 20500575 decimal digits
takes 172.145 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
Actual27214.042862.5000 %710000166850005.79255.1389 %19.835264.4271 %
Target27456.178963.5135 %4500007500000016.53663.9364 %72.715564.9498 %
Difference-2-42.1361-1.0135 %+260000-58315000-10.7441+1.2025%-52.8803-0.5227 %

Known prime factors (1 factor, 80.8 bits, 0.00011859% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6810143320535995608385334560157372580.76415077506231319196
22 × 3 × 7 × 29 × 53 × 4567 × 25570861
2014-07-144567255708615,491.55.12229.537

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2014-07-14TheJudgerManual testing710000166850001222580.7642.9324.257%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-10-271997rj7Manual testing212640.028
2009-04-11Randy Gold2642650.055
2009-04-19SAHS Science DeptSchool_Laptop2652660.110
2010-01-11Brian NeelyMonster2662670.219
2010-02-24SADMASTERACER_I52672680.439
2010-03-01lindedKA1CWHM-Lib12682690.878
2012-03-03dsls12692701.756
2012-07-25NBBlackBird2702713.511
2014-06-29RichD0Manual testing2712727.023


ECM factoring results:
No ECM results for M68101433


Lucas-Lehmer results:
No L-L results for M68101433


PRP results:
No PRP results for M68101433


CERT results:
No CERT results for M68101433


P-1 factor-bounds graph:
B1 = 710000, B2 = 16685000 (P-1 stage 2)
B1 = 710000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 74
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00