Prime Numbers

What is the first factor pair of the number 13?

• 2 and 6

• 1 and 13

• 5 and 8

• 3 and 4

Why can't 13 squares be arranged in two rows with an equal number of squares in each row?

• Because 13 is an odd number

• Because 13 is a prime number

• Because 13 is divisible by 3

• Because 13 is divisible by 2

What is the definition of a prime number?

• A number divisible by 2

• A number divisible by 3

• A number with more than two factors

• A number with exactly two factors: 1 and itself

Which of the following numbers is a prime number?

• 4

• 5

• 6

• 8

Why is the number 11 considered a prime number?

• It is divisible by 3

• It has exactly two factors: 1 and 11

• It is divisible by 2

• It has more than two factors