Question

Without dividing or listing multiples how can you tell if 61 is a multiple of 6.

Answer 1

for a number to be a multiple of 6, it must be divisible by 6
and a number divisble by 6 means that it is divisble by 2 and 3

since the ones digit is odd it is not divisble by 2 which means 61 is not a multiple of 6