Prime

What is a prime number?

• A number with 1 factor
• A number with 2 factors
• A number with 3 factors
• 2 factors (1 and itself)

What do we call a number that is not prime?

• Computer
• Composite
• Complain
• Company

Why is 1 neither prime or composite?

• It only has one factor
• It has three factors
• It isn't a number
• It is too close to 2

Complete the missing prime numbers: 1, 3, 5, 7, 11, 13

• 17, 19
• 15,17,19
• 18, 19
• 17, 19, 20

Which factors prove that 4 is not a prime number?

• 1, 2, 3, 4
• 1, 4, 5
• 1, 2
• 1, 2, 4

Which factors prove that 29 is a prime number?

• 2, 29
• 1, 29
• 1, 2, 13, 29
• 29

Which factors prove that 16 is a composite number?

• 1, 2, 4, 8, 16
• 1, 2, 16
• 1, 2, 8, 16
• 1, 3, 4, 9,

Which of these is a prime number?

• 33
• 34
• 35
• 37

Which of these is a prime number?

• 41
• 42
• 44
• 49

Tom thinks of the number 100. What is the next prime number after 100?

• 101
• 102
• 105
• 110