Number Theory

Sets of Numbers

100

Integers are a set of positive and negative numbers excluding zero. True of False

False

200

The following set includes only natural numbers. 

{0,1,2,3,4,5}

True or False

False

300

Rearrange the following integers in ascending order:

-5,5,0,3,-4,2

-5,-4,0,2,3,5

400

Rational numbers are written in the form of p/q. True /False

True

500

Is 4/0 a rational number. Yes or No

No

Factors

100

List all the factors of 8.

1,2,4,8

200

List all the factors of 18.

1,2,3,6,9.18

300

List all the factors of 50.

1,2,5,10,20,25,50

400

Is 12 a factor of 84? Yes or No

Yes

500

Is 57 a factor of 114? Yes or NO

Yes

Multiples

100

List the first 5 multiples of 4.

4,8,12,16,20

200

List the first 5 multiples of 10.

10,20,30,40,50

300

state the 5th multiples of 11.

55

400

state the 12th multiple of 8

96

500

State the 10th multiple of 10.

100

Mixed Topics

100

What is the sum of the factors of 12?

28

200

The tenth multiple of 13 is

130

300

The fifth multiple of 5 is

25

400

How many prime numbers are there from 1 to 100?

25

500

How many composite numbers are there from 1 to 100?

74