Divisibility Rules

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).

Front

What is the divisibility rule for 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

What is the divisibility rule for 4?

Back

A number is divisible by 4 if the number formed by its last two digits is divisible by 4.

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is 0 or 5.

Front

What is the divisibility rule for 6?

Back

A number is divisible by 6 if it is divisible by both 2 and 3.

Front

What is the divisibility rule for 10?

Back

A number is divisible by 10 if its last digit is 0.

Front

Is 202,470 divisible by 2?

Back

Yes, because its last digit is 0.

Front

Is 60,714 divisible by 3?

Back

Yes, because the sum of its digits (6+0+7+1+4=18) is divisible by 3.

Front

Is 40,500 divisible by 6?

Back

True, because it is divisible by both 2 (last digit is 0) and 3 (sum of digits is 9).

Front

Is 36,928 divisible by 4?

Back

Yes, because the last two digits (28) form a number that is divisible by 4.