is 2 81061703 - 1
has 24402005 decimal digits
takes 252.952 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
Actual27594.396164.0000 %690000139725006.39643.8011 %100.792565.3684 %
Target27594.396164.0000 %5500009000000024.53973.8810 %118.935865.3972 %
Difference---+140000-76027500-18.1432-0.0800 %-18.1432-0.0288 %

Known prime factors (1 factor, 78.7 bits, 0.00009708% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
810617034879044082701464895437932478.6913009463101645832
23 × 13 × 4931 × 7879 × 744817
2017-07-217879744817891.180.21730.3429

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-07-21Oliver KruseHalfPM1-0690000139725001222478.6916.3963.801%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-01Architects Cubedm1_092642650.046
2011-02-13LingUaanRoadRunner2652660.092
2013-01-30oilwarzonedotcomalexbresource2662670.184
2013-02-04Smok_bmvManual testing2672680.369
2013-02-05Smok_bmvManual testing2682690.737
2013-02-08Charles A. Morrischandra2692701.475
2013-06-05processinfoManual testing2702712.950
2014-01-13SMoffatManual testing2712725.900
2016-10-10Judge HaleManual testing27227311.80
2016-10-30TheJudgerManual testing27327570.80


ECM factoring results:
No ECM results for M81061703


Lucas-Lehmer results:
No L-L results for M81061703


PRP results:
No PRP results for M81061703


CERT results:
No CERT results for M81061703


P-1 factor-bounds graph:
B1 = 690000, B2 = 13972500 (P-1 stage 2)
B1 = 690000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00