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Question
Secondary 1 | Maths
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How to solve it
Example 1:
100 = 10 x 10
Therefore, 100 is a perfect square number.
Example 2:
50 = 7.071067812 x 7.071067812
Therefore, 50 is not a perfect square number
If a number have pairs of prime factors then it's a perfect sqaure.
Eg 45 factors are 5, 3,3 . Here 3 is in pair but 5 is single hence not a perfect square.
For 100 - start with 5
Factors will be 5 , 5 ,2,2
Here both 5 and 2 are in pairs hence perfect square.
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