Test Review

Which of the following is NOT a composite number?

• 7

• 9

• 21

• 30

All the following are odd numbers EXCEPT for?

• 4

• 5

• 17

• 23

Even numbers end with ______________.

• 0,2,4

• 1,3,5

• 1,3,5,7,9

• 0,2,4,6,8

1. ___________ consists of negative and positive natural numbers.

• integers

• irrational

• prime

• odd

This set of numbers is represented by the symbol Q.

• real

• natural

• rational

• square

1. Which of the following is NOT a rational number?

• 1

• 2

1. All the following are prime numbers EXCEPT:

• 3

• 5

• 8

• 11

1. The number 15 is composite because its factors are:

• {0,1,5}

• {1,3,5,6}

• {0,1,3,5}

• 1. {1,3,5,15}

Zero is NOT an element of this set of numbers.

• real

• whole

• natural

• integers

This set of numbers is represented by the symbol Z.

• natural

• integers

• whole

• prime