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A046502 Primes with multiplicative persistence value 2. 3

%I #14 Mar 13 2022 15:34:45

%S 29,37,43,53,67,73,83,127,137,163,167,173,199,223,233,251,257,269,271,

%T 281,317,349,431,439,457,461,521,523,541,547,563,569,587,599,613,617,

%U 631,641,653,659,761,821,827,853,857,859,919,991,1129,1153,1163,1217

%N Primes with multiplicative persistence value 2.

%H Daniel Mondot, <a href="/A046502/b046502.txt">Table of n, a(n) for n = 1..10000</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MultiplicativePersistence.html">Multiplicative Persistence</a>

%e 29 -> 2 * 9 -> [ 18 ] -> 1 * 8 -> [ 8 ] -> one digit in two steps.

%Y Intersection of A000040 and A046511.

%Y Cf. A046500.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Sep 15 1998

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Last modified March 28 14:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)