A016112 Smallest prime whose digit product is n, if possible; otherwise 0 if n is a prime > 7 or 1 if n has a prime factor > 7.

101, 11, 211, 13, 41, 151, 23, 17, 181, 19, 251, 0, 43, 0, 127, 53, 281, 0, 29, 0, 541, 37, 1, 0, 83, 11551, 1, 139, 47, 0, 523, 0, 1481, 1, 1, 157, 149, 0, 1, 1, 12451, 0, 67, 0, 1, 59, 1, 0, 283, 11177, 2551, 1, 1, 0, 239, 1, 1187, 1, 1, 0, 1453, 0, 1, 79, 881, 1

Offset

0,1

References

Charles W. Trigg, Products of the Digits of Primes, J. Rec. Math., Vol. 22 #4, pp. 247-248, 1990

Links

Table of n, a(n) for n=0..65.

Crossrefs

Sequence in context: A083152 A073053 A308106 * A283505 A290072 A288810

Adjacent sequences: A016109 A016110 A016111 * A016113 A016114 A016115

Keyword

nonn,base

Author

Robert G. Wilson v

Status

approved