A167725 Cubes that become a prime number when prefixed with a 1.

1, 27, 2197, 35937, 59319, 1092727, 1295029, 1860867, 2685619, 4330747, 4826809, 5000211, 5929741, 6128487, 8869743, 9393931, 24137569, 26198073, 27818127, 29503629, 38958219, 50243409, 54439939, 60698457, 75686967, 91733851, 95443993, 99252847

Offset: 1

Author

Claudio Meller, Nov 10 2009

Keywords

• nonn
• base

Links

• Bruno Berselli, Table of n, a(n) for n = 1..1000

Programs

Magma

[n^3: n in [1..10^3 by 2] | IsPrime(t) where t is Seqint(Reverse([1] cat Reverse(Intseq(n^3))))]; // Bruno Berselli, May 24 2012

Mathematica

Select[Range[500]^3,PrimeQ[FromDigits[Join[{1},IntegerDigits[#]]]]&] (* Harvey P. Dale, Oct 30 2014 *)