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Earn +20 ptsQ: Is 21 a perfect number
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Continue Learning about Geometry
What is the least number to be added to 1500 to make it a perfect square?
21
What is the smallest whole number that is a perfect square a perfect cube and a perfect fifth power?
the answer is definitly 0 (zero)!
Is 125 a perfect square-?
No because its a cubed number 53 = 125No
Which numbers are perfect squares?
1,4,9. Any number that is an integer squared. So 2x2 is a perfect square. Any whole number times itself.
Why do perfect squares have an odd number of factors?
Because the square root isn't listed twice.
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