Question

Nimish claims that –1728 is not a perfect cube number. Which of the following options justifies his claim? *

a. Nimish’s claim is correct because 8 is in one’s place which is not divisible by 3.

b. Nimish’s claim is incorrect because each prime factor of –1728 appears three times.

c. Nimish’s claim is incorrect because 1 + 7 + 2 + 8 = 18 which is divisible by 3.

d. Nimish’s claim is incorrect because 1 + 7 + 2 + 8 = 18 which is divisible by 3

Answer 1

Answer:

correct answer is option b