Given Number: 873
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 873: 8+7+3 = 18
18 is divisible by 9, 18 ÷ 9 = 2
Therefore, 873 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 873: 8+7+3 = 18
18 is divisible by 9, 18 ÷ 9 = 2
Therefore, 873 is divisible by 9
Notes:
- 873 ÷ 9 = 97
- Since 3 is a factor of 9, 873 is also divisible by 3
