Unit 1: Factors & Mutliples - Key Concepts

Front

What is a prime number?

Back

A prime number is a number that has only two factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a number that has more than two factors.

Front

What is the definition of a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What is the definition of a multiple?

Back

A multiple is a number that can be divided by another number without a remainder.

Front

What is the Least Common Multiple (LCM)?

Back

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

Front

How do you find the LCM of 3 and 4?

Back

List the multiples of each number: Multiples of 3: 3, 6, 9, 12, 15...; Multiples of 4: 4, 8, 12, 16...; The LCM is 12.

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors.

Front

What is the prime factorization of 24?

Back

The prime factorization of 24 is 2 × 2 × 2 × 3.

Front

What are the first five prime numbers?

Back

The first five prime numbers are 2, 3, 5, 7, and 11.

Front

What is a common factor?

Back

A common factor is a factor that two or more numbers share.