Prime Factorization, GCF & LCM

Front

What is prime factorization?

Back

The process of breaking down a number into its prime factors, which are the prime numbers that multiply together to give the original number.

Front

What is a prime number?

Back

A number greater than 1 that has exactly two distinct positive factors: 1 and itself.

Tags

CCSS.4.OA.B.4

Front

What is the GCF (Greatest Common Factor)?

Back

The largest positive integer that divides two or more numbers without leaving a remainder.

Front

What is the LCM (Least Common Multiple)?

Back

The smallest positive integer that is a multiple of two or more numbers.

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and identify the largest factor they have in common.

Front

How do you find the LCM of two numbers?

Back

List the multiples of each number and identify the smallest multiple they have in common.

Front

What is the prime factorization of 24?

Back

2 x 2 x 2 x 3 or 2^3 x 3.

Front

Which number is divisible by 2, 3, and 6?

Back

84 is divisible by 2, 3, and 6.

Front

If two numbers have a GCF of 1, what can you say about them?

Back

They are coprime, meaning they have no common factors other than 1.

Front

How many factors does 24 have?

Back

24 has 8 factors: 1, 2, 3, 4, 6, 8, 12, 24.

Tags

CCSS.4.OA.B.4