A244770 - OEIS

A244770

Prime numbers ending in the prime number 47.

47, 347, 547, 647, 947, 1447, 1747, 1847, 2347, 2447, 2647, 3347, 3547, 3847, 3947, 4447, 4547, 5147, 5347, 5647, 6047, 6247, 6547, 6947, 7247, 7547, 8147, 8447, 8647, 8747, 9547, 10247, 10847, 11047, 11447, 12347, 12547, 12647, 13147, 14347, 14447, 14747

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OFFSET

1,1

COMMENTS

Also primes of the form 100*n+47. Subsequence A141882, A141944.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[5, 6000]], Take[IntegerDigits[#], -2]=={4, 7} &]

PROG

(Magma) [n: n in PrimesUpTo(16000) | n mod 100 eq 47];

(PARI) select(x->(x % 100)==47, primes(2000)) \\ Michel Marcus, Jul 06 2014