Prime Factorization Quizziz

Prime Numbers...

• are the same as composite numbers

• have only one factor pair: 1 and the number itself

• have at least more than 1 factor pair

• 

Composite Numbers...

• are the same as prime numbers

• have only one factor pair: 1 and the number itself

• have more than 1 factor pair (ex. the factors of 10 are 1, 2, 5, and 10)

• are the same as even numbers

Prime Factorization is...

• finding all the prime numbers that multiply together to equal a given number

• have only one factor pair: 1 and the number itself

• have more than 1 factor pair

  (ex. the factors of 30 are 1, 2, 3, 5, 6, 10, 15, & 30)

• the biggest factor shared between 2 or more numbers

Greatest Common Factor (GCF) is...

• finding all the prime numbers that multiply together to equal a given number

• the smallest number that is a shared multiple of 2 or more numbers

• when you list all the factor pairs of a number from smallest to biggest

• the biggest factor shared between 2 or more numbers

Least Common Multiple (LCM) is...

• when numbers have more than 1 factor pair

• the smallest number that is a shared multiple of 2 or more numbers

• when numbers have only one factor pair: 1 and itself

• the biggest factor shared between 2 or more numbers

Sort the numbers

*Hint: use your prime numbers chart!

• 19

• Composite Number

• 24

• Prime Number

• 0

• Neither Prime nor Composite

What is the prime factorization of 40?

• 2 x 2 x 2 x 5

• 2 x 2 x 3

• 5 x 8

• 2 x 2 x 2 x 2 x 5

What is the prime factorization of 84?

• 7 x 12

• 2 x 2 x 3 x 5

• 2 x 2 x 3 x 7

• 2 x 2 x 2 x 2 x 2 x 2

What is the prime factorization of 144?

• 2 x 2 x 2 x 2 x 9

• 2 x 2 x 2 x 2 x 5

• 12 x 12

• 2 x 2 x 2 x 2 x 3 x 3

39 is an example of a ​ (a)   number

• composite
• prime
• even