Exploring Prime and Composite Numbers

The video tutorial introduces the concepts of prime and composite numbers, explaining that prime numbers have only two factors: one and themselves, while composite numbers have more than two factors. It covers the basics of factors and multiplication, emphasizing the importance of understanding these concepts. The tutorial also provides a strategy for prime factorization, encouraging concentration and practice. Finally, it recaps the key numbers and concepts discussed, reinforcing the learning objectives.

What is a prime number?

• A number that has only one factor.

• A number that is even.

• A number that has more than two factors.

• A number that has exactly two distinct factors.

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 7

• 6

• 8

• 4

Tags

CCSS.4.OA.B.4

What defines a composite number?

• A number that has only one factor.

• A number that has exactly two distinct factors.

• A number that has more than two factors.

• A number that is odd.

Tags

CCSS.4.OA.B.4

Which of the following is a composite number?

• 3

• 2

• 6

• 5

Tags

CCSS.4.OA.B.4

What is the purpose of prime factorization?

• To find the sum of prime numbers.

• To identify even numbers.

• To express a composite number as a product of prime numbers.

• To determine if a number is odd.