Factors and divisibility

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number without leaving a remainder.

Front

What does it mean for a number to be divisible by another number?

Back

A number is divisible by another number if you can divide it by that number without leaving a remainder.

Front

List the factors of 12.

Back

1, 2, 3, 4, 6, 12

Front

Which numbers are divisible by 5?

Back

Any number that ends in 0 or 5 is divisible by 5.

Front

What are the common factors of 12 and 20?

Back

1, 2, 4

Front

Which number is divisible by 6?

Back

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

Front

What is the smallest factor of any number?

Back

The smallest factor of any number is always 1.

Front

What is the largest factor of a number?

Back

The largest factor of a number is the number itself.

Front

How can you tell if a number is even?

Back

A number is even if it ends in 0, 2, 4, 6, or 8.

Front

How can you tell if a number is odd?

Back

A number is odd if it ends in 1, 3, 5, 7, or 9.