Question

Find the prime factors of the following numbers:

(6) 715

Answer 1

The prime factorisation of the number 715 by successive division method is given as follows:
$\begin{array}{cc}5& 715\\ 11& 143\\ 13& 13\\ & 1\end{array}$
⇒ 715 = 5 × 11 × 13

Thus, the prime factors are 5, 11 and 13.