Question

What could be the possible unit digit of the square root of 7744?​

Answer 1

Answer:

6 is a possible unit digit of square

Answer 2

Solution

$➾7744 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 11 \times 11$

$➾11 = {2}^{2} \times {2}^{2} \times {2}^{2} \times {11}^{2} = (2 \times 2 \times 2 \times 11 {)}^{2}$

By pairing the prime tractor then the square root of

$➾7744 = 2 \times 2 \times 2 \times 11 = 88$