Factors and Multiples and Prime and Composite

Which of the following numbers is a factor of 6?

• 12
• 2
• 8
• 10

Which of the following numbers is not a factor of 24?

• 6
• 8
• 3
• 7

Which of the following is a factor of 8?

• 3
• 5
• 4
• 7

Which lists all the factors of 15?

• 1, 7, 8, 15
• 1, 15
• 1, 3, 5, 15
• 3, 5, 15

Which lists all the factors of 40?

• 1, 2, 4, 5, 8, 12, 14, 40
• 1, 2, 3, 4, 5, 8, 10, 40
• 1, 2, 4, 5, 8, 10, 20, 40
• 1, 2, 5, 8, 20, 40

Find the HCF of 30 and 36

• 2
• 3
• 4
• 6

Find the HCF of 25 and 35

• 10
• 5
• 7
• 1

Which number is a multiple of 3?

• 27
• 28
• 29
• 26

Which number is a multiple of 5?

• 73
• 74
• 75
• 76

Which number is NOT a multiple of 2?

• 74
• 75
• 76
• 78