Disc

What does it mean if d divides n (d | n)?

• d is a composite number

• There is no remainder on the division

• d is a prime number

• d is greater than n

Which of the following numbers is divisible by 2?

• 129

• 128

• 123

• 135

What is the rule for divisibility by 3?

• The last two digits form a number divisible by 4

• The last digit is even

• The sum of the digits is divisible by 3

• The number ends with 0 or 5

Which number is divisible by 4?

• 5678

• 1234

• 7019

• 1312

What is the last digit of a number that is divisible by 5?

• 7

• 0 or 5

• 3

• 1

How do you determine if a number is divisible by 6?

• The sum of its digits is even

• It ends with 6

• It must be even

• It must be divisible by 2 and 3

What is the method to check if a number is divisible by 7?

• Check if the last digit is 0

• Check if the number is even

• Add the digits and check if divisible by 7

• Double the last digit and subtract from the rest

Which of the following is a prime number?

• 20

• 24

• 28

• 29

What is a composite number?

• A number that is only divisible by 1

• A number that can be divided by at least one number other than itself

• A number that is less than 1

• A prime number

What does GCF stand for?

• Greatest Common Factor

• Greatest Common Multiple

• General Common Multiple

• General Common Factor