Difference between revisions of "2021 JMPSC Accuracy Problems/Problem 1"
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| − | + | We use the fact that 27 = 2^3<math> to conclude that the only multiples of </math>3<math> that are factors of </math>27<math> are </math>3<math>, </math>9<math>, and </math>27<math>. Thus, our answer is </math>3+9+27=\boxed{39)$ | |
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| + | ~Bradygho | ||
Revision as of 21:56, 10 July 2021
Problem
Find the sum of all positive multiples of 
that are factors of 
Solution
We use the fact that 27 = 2^3
3
27
3
9
27
3+9+27=\boxed{39)$
~Bradygho
