Question

Find the smallest number by which 98 must be multiplied so that the product is a perfect square. *

Answer 1

here we have, 98

lets do the prime factorization of it

2|98

7|49

7|7

|1

98 = 2×7×7

= 2×7²

in the above factorization, 2 is non paired number.

hence, 98 should be multiplied with 2 to get a perfect square

.