College Math Placement Test College Math Placement Test Number Theory

Question 1

Which of the following numbers is prime?

Accepted Answer

61

Answer

51

Answer

57

Answer

91

Question 2

What is the greatest common divisor (GCD) of 48 and 36?

Accepted Answer

12

Answer

6

Answer

18

Answer

24

Question 3

What is the least common multiple (LCM) of 8 and 12?

Accepted Answer

24

Answer

16

Answer

32

Answer

96

Question 4

How many prime factors does 360 have counting multiplicity?

Accepted Answer

6

Answer

3

Answer

4

Answer

5

Question 5

Which of the following is divisible by both 4 and 9?

Accepted Answer

72

Answer

54

Answer

48

Answer

81

Question 6

If a number leaves a remainder of 3 when divided by 7, what is the remainder when twice that number is divided by 7?

Accepted Answer

6

Answer

1

Answer

3

Answer

2