Question

Using the prime factorisation method, find which of the following numbers are perfect squares: 441, 11025​

Answer 1

Step-by-step explanation:

hope it helpful to you mate

Answer 2

Answer:

441=3×7×7×3

so

$\sqrt{441} = \sqrt{3 \times 3 \times 7 \times 7} = 7 \times 3 = 21$

now

11025=5×5×21×21

$\sqrt{11025} = \sqrt{5 \times 5 \times 21 \times 21} = 5 \times 21 = 105$

so both are the perfect squares