When a number is divided by 3 or 7, there is a remainder of 2. What is this number?
Multiples of 3: 3, 6, 9, 12, 15, 18, 21
Multiples of 3 (+2): 5, 8, 11, 14, 17, 20, 23
Multiples of 7: 7, 14, 21
Multiples of 7 (+2): 9, 16, 23
Number = 23
Answer(s): 23