A046426 Numbers requiring 6 steps to reach a prime under the prime factor concatenation procedure.

45, 64, 153, 156, 169, 186, 190, 195, 258, 304, 325, 381, 396, 464, 493, 561, 575, 602, 646, 652, 662, 713, 725, 825, 843, 879, 880, 899, 944, 948, 951, 957, 988, 989, 1007, 1048, 1106, 1121, 1166, 1239, 1252, 1265, 1267, 1293, 1390, 1422, 1474, 1480, 1486

Offset: 1

Author

Patrick De Geest, Jun 15 1998

Keywords

• nonn
• base

Links

• Patrick De Geest, Home Primes

Crossrefs

Cf. A037271, A046411.

Extensions

Edited by Charles R Greathouse IV, Apr 28 2010