Test for Divisibility by 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 81: 8+1 = 9
9 is divisible by 3, 9/3 = 3
Therefore, 81 is divisible by 3
81/3 = 27
Test 81 for Divisibility by 3
The solution above and all other related solutions were provided by the Test for Divisibility by 3 Application.
