Question

Which of the following shows the prime factorisation of 24?

• A. $2\times 2\times 3\times 3$
• B. $2\times 2\times 3\times 3\times 3$
• C. $2\times 2\times 2\times 3$
• D. $2\times 2\times 2\times 2$

Answer 1

The correct option is C $2\times 2\times 2\times 3$

24 = $8\times 3$
8 = $4\times 2$
4 = $2\times 2$

So, the prime factorisation of 24 is $2\times 2\times 2\times 3$

Hence 'c' is the correct option.