Factors and Multiples Study Guide

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a number greater than 1 that has more than two positive divisors.

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number.

Front

What are multiples?

Back

Multiples of a number are the result of multiplying that number by an integer.

Front

Find the factors of 18.

Back

1, 2, 3, 6, 9, 18

Front

Is 15 a prime or composite number?

Back

15 is a composite number because it has factors other than 1 and itself.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

What is the least common multiple (LCM)?

Back

The LCM is the smallest number that is a multiple of two or more numbers.

Front

If a number is even, what can you say about its factors?

Back

An even number has at least one factor that is also even.