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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. 2
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 (list; graph; refs; listen; history; text; internal format)
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: A174926 A029949 A083152 * A067748 A190757 A212603

Adjacent sequences:  A016109 A016110 A016111 * A016113 A016114 A016115

KEYWORD

nonn,base

AUTHOR

Robert G. Wilson v

STATUS

approved

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Last modified May 19 16:51 EDT 2013. Contains 225433 sequences.