Question

What are the prime factors of 16?

(a) 2×4×2

(b) 2×2×2×2

(c) 8×2

(d) 16×1

I got this question in unit test.

My enquiry is from Square Root in division Squares and Square Roots of Mathematics – Class 8

Answer 1

Right answer is (b) 2×2×2×2

The explanation is: Prime factors are the multiplication of all the prime numbers in order to receive the desired number at the end. Here we have the number to be factorized as 16=2^4  (i.e.2×2×2×2). Therefore the answer would 2^4  (i.e.2×2×2×2).