Group Z Divisibility

Which 2 of these is divisible by both 3 and 4?

• 216

• 690

• 780

• 114

Which of these is divisible by both 5 and 9? (may be more than 1 answer)

• 2825

• 715

• 1035

• 2160

Which of these is odd? (there are more than 1)

• 1 + 2 + 3 + ... + 24 + 25

• 2 + 3 + 4 + ... + 24 + 25

• 3 + 4 + 5 + ... + 24 + 25

• 4 + 5 + 6 + ... + 24 + 25

What number between 400 and 425 is divisible by both 5 and 9?

The remainder when 847 is divided by 9 is:

• 1

• 2

• 3

• 4

The remainder when 79,997 is divided by 32 is:

• 31

• 30

• 29

• 28

What is the smallest prime factor of 825?

• 25

• 5

• 3

• 2