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 A173719 Sums of 2 successive primes s = prime(m) + prime(m+1) such that all digits of s are primes. 0

%I

%S 5,52,222,352,372,532,752,772,2252,2352,2572,3222,3232,5322,7572,

%T 22332,22552,22722,22752,23572,25232,25572,27232,27522,27732,32732,

%U 33522,33772,35232,35572,35772,37332,52232,52332,52372,53772,55552,57332,72532,72772,75252,75732,77322,222532,222572,223552,223572

%N Sums of 2 successive primes s = prime(m) + prime(m+1) such that all digits of s are primes.

%e 5 = 2 + 3, 52 = 23 + 29.

%o (PARI){a=2;b=3;for(n=1,12000,s=a+b;ev=eval(Vec(Str(s)));if(sum(k=1,#ev,isprime(ev[k]))==#ev,print1(s", "));a=b;b=nextprime(b+2))}

%Y Intersection of A001043 and A046034.

%K nonn,base

%O 1,1

%A _Zak Seidov_, Dec 22 2012

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Last modified May 13 17:46 EDT 2021. Contains 343864 sequences. (Running on oeis4.)