How many divisors are there in 126? How many of them are not divisible by 3?
There are 12 divisors of 126: 1, 2, 3, 6, 12, 7, 9, 14, 18, 27, 63, 126
There are four that can't be divided by 3, namely: 1, 2, 7, 14
There are 12 divisors of 126: 1, 2, 3, 6, 12, 7, 9, 14, 18, 27, 63, 126
There are four that can't be divided by 3, namely: 1, 2, 7, 14