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Special Multiple of 15
Special Multiple of 15
Source:
December 1, 2005
number theory
divisibility tests
Problem Statement
The integer
n
n
n
is the smallest positive multiple of 15 such that every digit of
n
n
n
is either 8 or 0. Compute
n
15
\frac{n}{15}
15
n
ā
.
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