Given Number: 324
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 324: 3+2+4 = 9
9 is divisible by 9, 9 ÷ 9 = 1
Therefore, 324 is divisible by 9
Notes:
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 324: 3+2+4 = 9
9 is divisible by 9, 9 ÷ 9 = 1
Therefore, 324 is divisible by 9
Notes:
- 324 ÷ 9 = 36
- Since 3 is a factor of 9, 324 is also divisible by 3