Directions:
The test contains 36 problems. We need complete the test at a 90% level in under 3 minutes.

A. Indicate whether the following numbers are prime, composite or neither.

1.		prime   composite   neither
2.		prime   composite   neither
3.		prime   composite   neither
4.		prime   composite   neither
5.		prime   composite   neither

B. Which of the following numbers are divisible by 3. Answer yes or no.

6.

yes

no

7.

yes

no

8.

yes

no

C. Which of the following numbers are divisible by 6. Answer yes or no.

9.

yes

no

10.

yes

no

11.

yes

no

D. List two other distinct factors for each of the following numbers.

12.		1,	,	,		13.		1,	,	,		14.		1,	,	,
15.		1,	,	,		16.		1,	,	,		17.		1,	,	,

E. Name the prime factoization for each of the following numbers.

18.	List the prime factors of 55.
19.	List the prime factors of 36.
20.	List the prime factors of 40.

F. Find the Least Common Multiple (LCM) of the following pairs of numbers.

21.

and

LCM:

22.

and

LCM:

23.

and

LCM:

24.

and

LCM:

25.

and

LCM:

26.

and

LCM:

27.

and

LCM:

28.

and

LCM:

G. Find the Greatest Common Factor (GCF) of the following pairs of numbers.

29.

and

GCF:

30.

and

GCF:

31.

and

GCF:

32.

and

GCF:

33.

and

GCF:

34.

and

GCF:

35.

and

GCF:

36.

and

GCF:

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