A262193 Primes that are a concatenation of ten consecutive numbers.
45678910111213, 20212223242526272829, 68697071727374757677, 88899091929394959697, 122123124125126127128129130131, 140141142143144145146147148149, 188189190191192193194195196197, 200201202203204205206207208209, 212213214215216217218219220221
Offset: 1
Examples
4_5_6_7_8_9_10_11_12_13 is a prime number.
Programs
-
Mathematica
Select[FromDigits[Flatten[IntegerDigits[#]]]&/@Partition[Range[300], 10, 1], PrimeQ] (* Vincenzo Librandi, Sep 15 2015 *)
-
PARI
for(n=1, 1e3, if(isprime(k=eval(Str(n, n+1, n+2, n+3, n+4, n+5, n+6, n+7, n+8, n+9))), print1(k", ")))