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

Author

Jaroslav Krizek, Nov 25 2011

Keywords

• nonn
• base

Comments

Complement of A201023 with respect to A034055.

Examples

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

Links

• Eric Weisstein's World of Mathematics, Multiplicative Digital Root

Crossrefs

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