A201022 Primes whose multiplicative digital root is 8.

29, 67, 79, 83, 97, 149, 163, 167, 179, 181, 197, 199, 229, 233, 241, 263, 337, 373, 419, 421, 433, 461, 491, 499, 613, 617, 631, 641, 661, 719, 733, 761, 811, 881, 883, 919, 941, 971, 991, 1129, 1163, 1181, 1229, 1237, 1291, 1327, 1361, 1373, 1381, 1399, 1423

Offset

1,1

Comments

Complement of A201023 with respect to A034055.

Links

Table of n, a(n) for n=1..51.

Eric Weisstein's World of Mathematics, Multiplicative Digital Root

Example

Prime 149 is in the sequence because 1*4*9=36, 3*6=18, 1*8=8.

Crossrefs

Cf. A201023 (composite numbers whose multiplicative digital root is 8), A034055 (numbers whose multiplicative digital root is 8).

Sequence in context: A044512 A211492 A165238 * A367151 A118481 A245744

Adjacent sequences: A201019 A201020 A201021 * A201023 A201024 A201025

Keyword

nonn,base

Author

Jaroslav Krizek, Nov 25 2011

Status

approved