Chapter 1 Test

3 Numbers/Primes

100

Find the GCF:

14, 49, 7

7

200

Find the LCM:

5, 4, 10

20

300

Find the GCF:

7, 28, 98

7

400

Is 230265 prime or composite?

Composite

500

Find the LCM:

9, 27, 2

54

LCM

100

What does LCM stand for?

Lowest/Least Common Multiple

200

Find the LCM:

5 and 3

15

300

Find the LCM:

7 and 8 

56

400

Find the LCM:

14 and 6

42

500

Find the LCM:

26 and 12

156

GCF

100

What does GCM stand for?

Greatest Common Multiple

200

Find the GCF:

2 and 4

2

300

Find the GCF:

12 and 4

4

400

Find the GCF:

15 and 8

1

500

Find the GCF:

21 and 168

21

Primes

100

What is a prime?

A prime is a number that can only be multiplied by 1 and itself.

200

What is a composite?

A composite is a number that has multiple ways to be multiplied.

300

Which is a prime?

11, 14, 15, 16

11

400

Which is a composite?

13, 17, 19, 20

20

500

Is 1 prime or composite?

Neither

Divisibility Rules

100

What is the divisibility rule for 6?

If the number is divisible by 2 and 3

200

What is the divisibility rule for 3?

If the sum of the numbers is divisible by 3 

300

What numbers are 12 divisible by? (Hint: 1 is in the answer)

1, 2, 3, 4, 6

400

What is 30 divisible by?

1, 2, 3, 5, 6, 10

500

What is 56 divisible by?

1, 2, 4