Question

Which of the following numbers has the largest number of unique prime factors?: {135, 62, 96}

Answer 1

`96` has the largest number of unique prime factors.

Explanation:

Prime factors of `135` are `3` and `5` as `135=3xx3xx3xx5`

Prime factors of `62` are `2` and `31` as `62=2xx31`

Prime factors of `96` are `2` and `3` as `96=2xx2xx2xx2xx2xx3`

Hence, all these numbers have just two prime numbers as factors, but `96` has the largest number of unique prime factors.