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A235696
Semiprimes which have one or more occurrences of exactly eight different digits.
7
10234569, 10234657, 10234685, 10234687, 10234769, 10234795, 10234859, 10234865, 10234879, 10234957, 10234967, 10235469, 10235479, 10235489, 10235497, 10235679, 10235689, 10235769, 10235789, 10235798, 10235846, 10235847, 10235879, 10235894, 10235947, 10235986
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[10234000, 10236000], PrimeOmega[#]==Count[DigitCount[#], 0]==2&] (* Harvey P. Dale, Sep 01 2014 *)
PROG
(PARI)
list(lim)=my(v=List(), t); forprime(p=2, sqrt(lim), t=p; forprime(q=p, lim\t, listput(v, t*q))); vecsort(Vec(v)) \\ From A001358
b=list(1030000); s=[]; for(n=1, #b, if(#vecsort(eval(Vec(Str(b[n]))), , 8)==8, s=concat(s, b[n]))); s
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Colin Barker, Jan 14 2014
STATUS
approved