'algorithm to find the first number in a range that can devided a certain number?
I want to optimize my code and I feel there could be a better algorithm for my problem.Here is the thing: given a range of numbers [lower,upper] and a certain number K(K>=upper>lower),to find the first number in the range that (K % number ==0).what is the best solution for that? I can only come up with the brute force solution but they are too slow for my program.
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