Front

Prime Number

Back

A number that is only divisible by 1 and itself.

Front

Composite Number

Back

Positive numbers other than 1 which are not prime.

Front

Multiple

Back

The result when that number is multiplied by another number.

Front

Lowest Common Multiple (LCM)

Back

The smallest multiple common to a set of numbers. e.g. The LCM of 3 and 4 is 12.

Front

Factor

Back

A number that you multiply with another number to get a product.

Front

Highest Common Factor (HCF)

Back

The largest factor common to a set of numbers. e.g. the HCF of 16 and 24 is 8.

Front

Estimate

Back

A rough judgement of quantity, value, or number.

Front

Sum

Back

The answer when two or more values are added together.

Front

Product

Back

The answer when two values are multiplied together.

Front

Quotient

Back

A result obtained by dividing one quantity by another.