Test 180 for Divisibility by 9

Given Number: 180
Test a Number for Divisibility by Nine (9):
• A Number is divisible by 9 if the Sum of the Digits in the Number is divisible by 9
Sum of the Digits in 180: 1+8+0 = 9
9 is divisible by 9, 9 ÷ 9 = 1
Therefore, 180 is divisible by 9
Notes:

• 180 ÷ 9 = 20
• Since 3 is a factor of 9, 180 is also divisible by 3