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jmc

number theory intermediate

Problem

Convert to base 9.
Solution
We see that the largest power of 9 that is less than 2014 is , and the largest multiple of 729 less than 2014 is 1458, or . From here, we find that the largest power of nine less than is , and the largest multiple of 81 less than 556 is 486, or . Next, the largest power of nine that is less than is , giving us 63 or as the largest multiple of 9. Finally, this leaves us with , or . Therefore, we can express 2014 as , which gives us .
Final answer
2677_9