Question

The prime factorisation of 272 is .

• A. $2^2\times 17$
• B. $2^4\times 17$
• C. $2^4\times 13$

Answer 1

The correct option is B $2^4\times 17$

272 can be factorised as following:

$\begin{array}{cc}2& 272\\ 2& 136\\ 2& 68\\ 2& 34\\ 17& 17\\ & 1\end{array}$
Thus, 272 = $2^4\times 17.$