Test 129 for Divisibility by 3

Given Number: 129
Test a Number for Divisibility by Three (3):
• A Number is divisible by 3 if the Sum of the Digits in the Number is divisible by 3
Sum of the Digits in 129: 1+2+9 = 12
12 is divisible by 3, 12 ÷ 3 = 4
Therefore, 129 is divisible by 3
Note: 129 ÷ 3 = 43