Test 99 for Divisibility by 9

Given Number: 99
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 99: 9+9 = 18
18 is divisible by 9, 18 ÷ 9 = 2
Therefore, 99 is divisible by 9
Notes:

99 ÷ 9 = 11
Since 3 is a factor of 9, 99 is also divisible by 3

The solution above and all other related solutions were provided by the Test for Divisibility by 9 Application.

Related Glossary Terms

Composite Number

Divisibility Rules

Multiple

Multiplication Table

Prime Factorization

Prime Number

Related Applications

Find the Least Common Multiple by Prime Factorization

List the Factors and Factor Pairs of a Whole Number

List the First n Multiples of a Positive Integer

Prime Factorization with a Factor Tree

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