M2Q1 - Number Theory

Which of the following numbers is not composite?

• 24
• 40
• 66
• 61

Name the 5th prime number.

• 2
• 11
• 5
• 7

How many prime numbers are there between 1 and 100?

• 100
• 75
• 50
• 25

Which is the only prime number that is even?

• 14
• 22
• 17
• 2

Number 27 is both ...

• even and composite
• odd and composite
• even and prime
• odd and prime

How many prime numbers are there between 80 and 89?

• 1
• 2
• 3
• 4

Find the LCM for 3 and 11.

• 11
• 22
• 33
• 44

Find the GCF for 40 and 48.

• 2
• 4
• 8
• 16

Find the LCM for 8 and 10.

• 20
• 32
• 40
• 60

Find the GCF for 22 and 96.

• 8
• 2
• 4
• 6