TFT

Test Number Divisibility Rules

Check if one number divides evenly into another. Learn and apply common divisibility rules for 2, 3, 5, 9, 10, and 11 with our interactive tester.

Number Divisibility Tester

Test if a number is divisible by another number

Divisibility Rules

Divisible by 2
Last digit is even (0, 2, 4, 6, 8)
Divisible by 3
Sum of digits is divisible by 3
Divisible by 4
Last two digits form a number divisible by 4
Divisible by 5
Last digit is 0 or 5
Divisible by 6
Divisible by both 2 and 3
Divisible by 7
Double the last digit, subtract from rest; result divisible by 7
Divisible by 8
Last three digits form a number divisible by 8
Divisible by 9
Sum of digits is divisible by 9
Divisible by 10
Last digit is 0
Divisible by 11
Alternating sum of digits is divisible by 11