State true or false:
6546 is divisible by 6.
True
False
The unit digit is 6, so 6546 is divisible by 2.
Sum of digits = 21 which is divisible by 3.
Since 6546 is divisible by 2 and 3 both, it is divisible by 6.
∀ n ϵ N, P(n):4.7n+20 is divisible by 24. State true or false.