Question

For the product n(n + 1)(2n + 1), n ∈ N, which one of the following is not necessarily true?
1 point
It is even
Divisible by 3
Divisible by the sum of the square of first n natural numbers
Never divisible by 237​

Answer 1

Answer:

Divisible by the sum of the square of first n natural number is not necessarily true