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How many positive integers less than 555 are either a perfect cube or a perfect square?

 Jan 3, 2019

Best Answer 

 #1
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Take the square root of 555:

Sqrt(555) = 23 - perfect squares under 555

Cube root(555) = 555^1/3 =8 - perfect cubes under 555.

Note: 1 and 64 are shared as both perfect squares and perfect cubes.

 Jan 3, 2019
 #1
avatar
+1
Best Answer

Take the square root of 555:

Sqrt(555) = 23 - perfect squares under 555

Cube root(555) = 555^1/3 =8 - perfect cubes under 555.

Note: 1 and 64 are shared as both perfect squares and perfect cubes.

Guest Jan 3, 2019

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