Factors and Multiples

List the Factors

100

List the factors of 12

1,2,3,4,6,12

200

List the factors of 24

1,2,3,4,6,8,12,24

300

List the factors of 42

1, 2, 3, 6, 7, 14, 21, 42

400

List the factors of 56

1, 2, 7, 8, 28, 56

500

List all the factors of 100

1, 2, 4, 5, 10, 25, 50, 100

First 5 Multiples

100

List the first five multiples of 7

7, 14, 21, 28, 35

200

List the first five multiples of 9

9, 18, 27, 36, 45

300

List the first five multiples of 10

10, 20, 30, 40, 50

400

List the first five multiples of 11

11, 22, 33, 44, 55

500

List the first five multiples of 12

12, 24, 36, 48, 60

Prime or Composite

100

Is 29 a prime or composite number?

Prime

200

Is 36 a prime or composite number?

Composite

300

Is 83 prime or composite?

prime

400

Is 87 a prime or composite number?

composite number

500

Is 1 a prime or composite number?

Neither, it is not prime or composite

From the Test

100

1. Which number is both a factor of 30 and a multiple of 5?
A. 6
B. 10
C. 12
D. 20

10

200

Jared says all even numbers less that 20 are composite. Find an even number less than 20 that is NOT composite.

2

300

3. Which number is both a factor of 48 and a multiple of 4?
A. 6
B. 18
C. 20
D. 8

8

400

Give all the factors of 42 that are PRIME numbers

2, 3, 7

500

4. Which number has factors that include both 4 and 7?
A. 56
B. 21
C. 24
D. 42

56

Riddles

100

I am prime. I am greater than 30 and less than 40. The sum of my digits is 10. What number am I?

37

200

I am a factor of 40. I am greater than 5 and less than 10. What number am I?

8

300

I am composite. I am greater than 60 and less than 70. The sum of my digits is 12. What number am I?

66

400

I am a multiple of both 6 and 9. I am greater than 40 and less than 100. I can also be divided by 4 with no remainder. What number am I?

72

500

I am composite. I am greater than 20 and less than 30. I have exactly four factors, and the sum of my digits is 8. What number am I?

26

1,2,13,26