Question

find the smallest number by which 2940 must be multiplied so that it becomes a perfect square

Answer 1

write 2940 as product of primes

2940 = 2*2*3*5*7*7

= (2*2)*(7*7)*2*3

2 and 3 are isolated numbers
so , to make 2940 perfect square ,we have to multiply it with 2*3

2940*2*3 = (2*2)*(7*7)*(2*2)*(3*3)

17640 =(2*7*2*3)²
= (84)²

Answer 2

Answer:

(84)²

Step-by-step explanation:

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