Question

Express each number as a product of its prime factors:
(i) 140
(ii) 156

Answer 1

(i) 140 can be expressed as:

$140=2\times 2\times 5\times 7$

$=2^2\times 5\times 7$

(ii) 156 can be expressed as:
$156=2\times 2\times 3\times 13=2^2\times 3\times 13$