Question

Express each of the following numbers using exponential notation:

(i) 343
(ii) 3125 [2 marks]

Answer 1

(i) The factorisation of 343 = 7 × 7 × 7 (0.5 Marks)

So it can be expressed in the exponential form as 7³. (0.5 Marks)

(ii) The factorisation of 3125 = 5 × 5 × 5 × 5 × 5 (0.5 Marks)

So it can be expressed in the exponential form as 5⁵. (0.5 Marks)