Question

EXERCISE 2.1
1. Which of the following numbers are not perfect cubes?
(1) 216
(0) 128
(ii) 1000
(v) 46656
(iv) 100​

Answer 1

Answer:

please mark as brilliant

Answer 2

Answer:

128, 100

Step-by-step explanation:

The prime factors of 128 are 2×2×2×2×2×2×2. They cannot be grouped into pairs of threes.

100 has an even number of zeroes. Perfect Cubes do not have an even number of zeroes.

Therefore, they are not perfect cubes.