What is the main focus of this video tutorial?

• Understanding fractions

• Learning about prime and composite numbers

• Exploring algebraic expressions

• Studying geometric shapes

Which of the following is a characteristic of a prime number?

• It has more than two factors

• It is always an even number

• It is divisible by 10

• It has only two factors: one and itself

Which number is a prime number?

• 15

• 21

• 29

• 35

What defines a composite number?

• A number that is always odd

• A number with more than two factors

• A number with exactly two factors

• A number with only one factor

Which of the following is a composite number?

• 13

• 9

• 11

• 7

Which of these numbers is not a prime number between 1 and 100?

• 97

• 37

• 51

• 73

What is the purpose of the extra challenge in the video?

• To identify prime numbers over 100

• To solve algebraic equations

• To learn about fractions

• To practice multiplication

Which number is identified as a prime number in the extra challenge?

• 111

• 159

• 143

• 139

What are the factors of 111 as mentioned in the challenge solution?

• 3 and 53

• 11 and 13

• 3 and 37

• 1 and 111

What is the concluding advice given in the video?

• Practice makes perfect

• Memorize all prime numbers

• Focus on even numbers

• Ignore composite numbers