IMSA Number Theory and Arithmetic

Question 1

What is the greatest common factor (GCF) of 36 and 48?

Accepted Answer

12

Answer

6

Answer

18

Answer

24

Question 2

What is the least common multiple (LCM) of 4 and 6?

Accepted Answer

12

Answer

24

Answer

8

Answer

6

Question 3

Which of the following is a prime number?

Accepted Answer

37

Answer

39

Answer

51

Answer

49

Question 4

What is 2³ × 3²?

Accepted Answer

72

Answer

18

Answer

36

Answer

54

Question 5

What is the prime factorization of 60?

Accepted Answer

2² × 3 × 5

Answer

2 × 3² × 5

Answer

2³ × 3 × 5

Answer

2 × 3 × 5²

Question 6

What is the value of 5! (5 factorial)?

Accepted Answer

120

Answer

60

Answer

24

Answer

20