Question

Find the smallest number by which 8820 should be divided to make it a perfect square. Find the square root of the perfect square so obtained.

Answer 1

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

Answer 2

Step-by-step explanation:

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