A244769 Prime numbers ending in the prime number 43.

43, 443, 643, 743, 1543, 2143, 2243, 2543, 2843, 3343, 3643, 3943, 4243, 4643, 4943, 5443, 5743, 5843, 6043, 6143, 6343, 7043, 7243, 7643, 8243, 8443, 8543, 9043, 9343, 9643, 9743, 10243, 10343, 11243, 11443, 11743, 12043, 12143, 12343, 12743, 13043, 14143

Offset: 1

Author

Vincenzo Librandi, Jul 06 2014

Keywords

• nonn
• base
• easy

Comments

Also primes of the form 100*n+43. Subsequence of A105854, A141941.

Links

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

Crossrefs

Cf. A105854, A141941.

Cf. similar sequences listed in A244763.

Programs

Magma

[n: n in PrimesUpTo(16000) | n mod 100 eq 43];

Mathematica

Select[Prime[Range[5, 6000]], Take[IntegerDigits[#], -2]=={4, 3} &]

PARI

select(x->(x % 100)==43, primes(2000)) \\ Michel Marcus, Jul 06 2014