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A224843 Primes p = prime(k) such that the representation of p can be split in two parts whose sum is k. 1

%I #10 Jul 22 2013 08:12:44

%S 131,64279,64319,64483,64513,64621,10708553,211689713,1473469351,

%T 14655469571,16744452731,20921000803,1868659342061,2075982751859,

%U 2490551934503,3112244742829

%N Primes p = prime(k) such that the representation of p can be split in two parts whose sum is k.

%C a(17) > 4*10^12.

%e prime(20+921000803) = 20921000803.

%t Reap[Do[k = 1; p = Prime@n; While[(k *= 10) < p, If[Mod[p, k] + Floor[p/k] == n, Sow@p]], {n, 9000}]][[2, 1]]

%Y Cf. A112013, A224827.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Jul 22 2013

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)