Mathematics for IGCSE & O level - Number (Section 3 - No. 2)
What is the value of k in 96k, given that 96k is a square number?
2
3
6
8
คำอธิบาย
96= 2^5 * 3, for the product to be a square number, all powers of primes must be even. Hence we need 2 and 3 which is equivalent to 6.