By what number must 20 be divided to become a perfect square? – InterviewSolution

1.	By what number must 20 be divided to become a perfect square?
Answer» N:(i) 252 = 2 x 2 x 3 x 3 x 7Here, prime FACTOR 7 has no PAIR. Therefore 252 must be divided by 7 to MAKE it a PERFECT square.\therefore252\div7=36∴252÷7=36And \sqrt{36}=2\times3=6 36 =2×3=6

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