A061807 Smallest positive multiple of n containing only even digits.

2, 2, 6, 4, 20, 6, 28, 8, 288, 20, 22, 24, 26, 28, 60, 48, 68, 288, 228, 20, 42, 22, 46, 24, 200, 26, 486, 28, 406, 60, 62, 64, 66, 68, 280, 288, 222, 228, 468, 40, 82, 42, 86, 44, 2880, 46, 282, 48, 686, 200, 204, 208, 424, 486, 220, 224, 228, 406, 826, 60, 244, 62

Offset

1,1

Links

Paul Tek, Table of n, a(n) for n = 1..10000

Example

a(7) = 28 because among the multiples of 7, that is, 7, 14, 21, 28,... 28 is the smallest multiple with only even digits.

Mathematica

Table[k = n; While[Length[Intersection[{1, 3, 5, 7, 9}, IntegerDigits[k]]] > 0, k = k + n]; k, {n, 100}] (* T. D. Noe, Jun 03 2013 *)
spme[n_]:=Module[{k=1}, While[AnyTrue[IntegerDigits[k*n], OddQ], k++]; k*n]; Array[spme, 70] (* Harvey P. Dale, Mar 19 2024 *)

Crossrefs

Cf. A067044, A061808.

Sequence in context: A329249 A067045 A083467 * A062885 A062293 A317368

Adjacent sequences: A061804 A061805 A061806 * A061808 A061809 A061810

Keyword

base,nonn,easy

Author

Amarnath Murthy, May 28 2001

Extensions

Corrected and extended by Larry Reeves (larryr(AT)acm.org), May 29 2001

Status

approved