7.4 prime and composite numbers

How is a prime number different from a composite number?

• Prime numbers are smaller than composite numbers.
• Composite numbers are larger than prime numbers.
• All odd numbers are prime numbers.
• Prime numbers have only 2 factors, and composite numbers have more than 2 factors.

Which one is a composite number?

• 37
• 41
• 21
• 29

Which number below is NOT prime?

• 2
• 11
• 13
• 18

What do we call the answer to a multiplication question?

• sum
• difference
• quotient
• product

the only factors prime numbers have are:

• 0 and 1
• 0 and itself
• 1 and itself
• 1

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Which list is only composite numbers?

• 1, 3, 4
• 2, 4, 6
• 4, 6, 8
• 5, 6, 8

Find the prime number.

• 0
• 1
• 7
• 4

Which is a prime number?

• 15
• 17
• 21
• 39

Is 100 a prime or composite number?

• Prime
• Composite