17 lines
332 B
Python
17 lines
332 B
Python
# Ugly number
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# If positive number n has prime factors limited to 2, 3 and 5,
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# it's a ugly prime
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# -2^31 <= n <= 2^31 - 1
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class Solution:
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def isUgly(self, n: int) -> bool:
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if n <= 0:
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return False
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for p in [2, 3, 5]:
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while n % p == 0:
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n = n // p
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return n == 1
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