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A081988 Product of digits + 1 is a prime. 4

%I

%S 1,2,4,6,11,12,14,16,21,22,23,25,26,28,29,32,34,36,41,43,44,47,49,52,

%T 56,58,61,62,63,65,66,67,74,76,82,85,89,92,94,98,111,112,114,116,121,

%U 122,123,125,126,128,129,132,134,136,141,143,144,147,149

%N Product of digits + 1 is a prime.

%C Sequence is infinite: every number of the form 111..1 is in the sequence, for example. - Gabriel Cunningham (gcasey(AT)mit.edu), Apr 07 2003

%e 126 is a member as 1*2*6 + 1 = 13 is a prime.

%K base,easy,nonn

%O 0,2

%A _Amarnath Murthy_, Apr 04 2003

%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

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Last modified September 25 09:48 EDT 2020. Contains 337336 sequences. (Running on oeis4.)