2015 AIME II Problems/Problem 3

Revision as of 14:00, 26 March 2015 by Bobthesmartypants (talk | contribs) (Solution)

Problem

Let $m$ be the least positive integer divisible by $17$ whose digits sum to $17$. Find $m$.

Solution 1

The three-digit integers divisible by $17$, and their digit sum:

\[\begin{array}{c|c}
m & s(m)\\
102 & 3
119 & 11
136 & 10
153 & 9
170 & 8
187 & 16
204 & 6
221 & 5
238 & 13
255 & 12
272 & 11
289 & 19
306 & 9
323 & 8
340 & 7
357 & 15
374 & 14
391 & 13
408 & 12
425 & 11
442 & 10
459 & 18
476 & 17
\end{array}\] (Error compiling LaTeX. Unknown error_msg)

Thus the answer is $\boxed{476}$.

See also

2015 AIME II (ProblemsAnswer KeyResources)
Preceded by
Problem 2
Followed by
Problem 4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
All AIME Problems and Solutions

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