Exploring Prime and Composite Numbers

In this video, Mr. J explains the concepts of prime and composite numbers. He provides definitions and examples to help viewers understand how to identify these numbers. The video covers the factors of numbers and highlights common misconceptions, such as the belief that all odd numbers are prime. Special cases, like the number 2 being the only even prime number, are also discussed. The video aims to clarify these concepts through practical examples and clear explanations.

What is the main topic of the video?

• Multiplication and Division

• Prime and Composite Numbers

• Addition and Subtraction

• Fractions and Decimals

Tags

CCSS.5.NBT.B.7

How many factors does a prime number have?

• More than three

• Three

• Two

• Only one

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CCSS.4.OA.B.4

Which of the following is a composite number?

• 7

• 13

• 24

• 29

Tags

CCSS.4.OA.B.4

What are the factors of 6?

• 1, 2, and 6

• 1 and 6

• 2 and 3

• 1, 2, 3, and 6

Tags

CCSS.4.OA.B.4

Which number is prime?

• 13

• 18

• 4

• 9

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CCSS.4.OA.B.4

Why is 9 considered a composite number?

• It has more than three factors

• It has three factors

• It has two factors

• It has only one factor

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 15

• 5

• 18

• 33

Tags

CCSS.4.OA.B.4

What makes 2 a special prime number?

• It is a composite number

• It has three factors

• It is the only even prime number

• It is the smallest number

Tags

CCSS.4.OA.B.4

Which of the following numbers is composite?

• 34

• 13

• 29

• 2

Tags

CCSS.4.OA.B.4

What are the factors of 21?

• 1, 2, and 21

• 1, 3, 7, and 21

• 3 and 7

• 1 and 21

Tags

CCSS.4.OA.B.4