GCF LCM Prime Factorization

Front

What are prime numbers?

Back

Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves.

Front

Name the first 8 prime numbers.

Back

2, 3, 5, 7, 11, 13, 17, 19

Front

What is the definition of GCF (Greatest Common Factor)?

Back

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

Front

What is the definition of LCM (Least Common Multiple)?

Back

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

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 prime factorization?

Back

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

Front

What is the prime factorization of 36?

Back

2 x 2 x 3 x 3

Front

What is the prime factorization of 168 using a factor tree?

Back

2 x 2 x 2 x 3 x 7

Front

Which numbers are divisible by 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.