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yanglbme 提交于 2020-10-20 11:19 . docs: prettify code

17.09. Get Kth Magic Number

Description

Design an algorithm to find the kth number such that the only prime factors are 3, 5, and 7. Note that 3, 5, and 7 do not have to be factors, but it should not have any other prime factors. For example, the first several multiples would be (in order) 1, 3, 5, 7, 9, 15, 21.

Example 1:


Input: k = 5



Output: 9

Solutions

Python3

Java

...

Java
1
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