Find the smallest number by which 780
is divided to get a perfect square. Also find
the square root of the number obtained.
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Answer:
189 is the smallest number which when divided or multiplied the answer is perfect square
Step-by-step explanation:
The prime factors of 780 are 2*2*3*5*13. To be a perfect square each prime factor must be even times i.e. 0times, 2 times, 4 times etc. So 3, 5, 13 are only time so we need to multiply or divide 780 with 3*5*13 i.e 189 to make them 2 times (if multiplied) or 0 times (if divided).
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