Prime, Composite, Factors, and Multiples

What is a prime number?

• A prime number is a an even number

• A prime number is a number less than 1.

• A prime number is a number with more than one pair of factors.

• A prime number is a number with only one pair of factors - 1 and itself.

Tags

CCSS.4.OA.B.4

Which numbers are composite?

• 4

• 20

• 47

• 31

Tags

CCSS.4.OA.B.4

What is a least common multiple (LCM)?

A number greater than 1 that has more than one factor pair

• Composite

• Prime

Tags

CCSS.4.OA.B.4

What is a multiple?

• A multiple is a number is the product of a whole number and another number.

• A multiple is a number that cannot be divided by any number.

• A multiple is the sum of two numbers.

• A multiple is a prime number that has no factors.

What is a greatest common factor?

What is a factor?

• A factor is a number that subtracts another number.

• A factor is a number that is the product of a given whole number and another number.

• A factor is a number that is multiplied by another number to make a product.

• A factor is a number that adds to another number.

Tags

CCSS.4.OA.B.4

What is the greatest common factor (GCF) of 45?

• 1

• 20

• 8

• 15

What is the least common multiple of 6 and 15?

• 30

• 1

• 125

• 12

What are ALL of the factors of 45?

Tags

CCSS.4.OA.B.4