Express each of the following numbers using exponential notation:

(i) 512


(ii) 343


(iii) 729


(iv) 3125

(i) We have,

512 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2


= 29


(ii) We have,


343 = 7 × 7 × 7


= 73


(iii) We have,


729 = 3 × 3 × 3 × 3 × 3 × 3


= 36


(iv) We have,


3125 = 5 × 5 × 5 × 5 × 5


= 55


12