find the smallest numbet by which 8820 should be multiplied so as to get a perfect square.
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Answer:
write 8820 as product of primes
8820 = 2*2*3*3*5*7*7
= (2*2)*(3*3)*5*(7*7)
5 is the only isolated number
to make 8820 as perfect square we have
divide it with 5.
8820/5 = (2*2)*(3*3)*(7*7)
1764 = (2*3*7)²=(42)²
√1764= √(42)²= 42
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