A074211 Composites which use less than all of their digits in their prime factorization.

1024, 1331, 3645, 4375, 10201, 14641, 15625, 17253, 19321, 19683, 24389, 32805, 37179, 49375, 74431, 78125, 117649, 131072, 137216, 137842, 147833, 159375, 161051, 161792, 167042, 170471, 205379, 214369, 214375, 234375, 239872, 249318

Offset

1,1

Comments

Prime numbers use all of their digits and an extra 1 (as a power) in their prime factorization. Thus this sequence can be defined as numbers which use a proper subset of their digits in their prime factorization. - Tanya Khovanova, Apr 20 2022

Links

Table of n, a(n) for n=1..32.

Example

1024 = 2^10.

Crossrefs

Cf. A025283.

Sequence in context: A365583 A057370 A057421 * A057443 A046313 A046314

Adjacent sequences: A074208 A074209 A074210 * A074212 A074213 A074214

Keyword

base,easy,nonn

Author

Stephen Tucker, Sep 19 2002

Status

approved