A201023 Composite numbers whose multiplicative digital root is 8.

8, 18, 24, 36, 38, 42, 46, 49, 63, 64, 66, 76, 77, 81, 88, 92, 94, 99, 118, 124, 129, 136, 138, 142, 146, 164, 166, 176, 177, 183, 188, 192, 194, 214, 219, 222, 226, 234, 236, 237, 243, 248, 262, 273, 284, 291, 292, 316, 318, 323, 324, 326, 327, 332, 334, 339

Offset

1,1

Comments

Complement of A201022 with respect to A034055.

Links

Table of n, a(n) for n=1..56.

Eric Weisstein's World of Mathematics, Multiplicative Digital Root

Formula

Composite number 124 is in the sequence because 1*2*4=8.

Crossrefs

Cf. A201022 (primes whose multiplicative digital root is 8), A034055 (numbers whose multiplicative digital root is 8).

Sequence in context: A039278 A045043 A043881 * A199989 A201056 A352081

Adjacent sequences: A201020 A201021 A201022 * A201024 A201025 A201026

Keyword

nonn,base

Author

Jaroslav Krizek, Nov 25 2011

Status

approved