Mathematics for IGCSE & O level - Number (Section 3 - No. 15)
What is the value of k in 96k, given that 96k is a cube number?
2
3
6
9
解释
96 = 2^5 * 3, To form a cube number you must make the exponents to be divisible by 3. 3 is the smallest number that is the answer.