Test the divisibility of each of the following numbers by 3.
100002
67035
A number is divisible by 3 only when the sum of its digits is divisible by 3.
100002 : 1 + 0 + 0 + 0 + 0 + 2 = 3, which is divisble by 3.
1693 : 1 + 6 + 9 + 3 =19, is not divisible by 3.
20345 : 2 + 0 + 3 + 4 + 5 = 14, which is not divisible by 3.
67035 : 6 + 7 + 0 + 3 + 5 = 21, which is divisble by 3.
Hence, 100002, 67035 are divisible by 3.