IMO Number Theory 2

Question 1

What is the value of 2⁵?

Accepted Answer

32

Answer

10

Answer

16

Answer

64

Question 2

Which of the following is a perfect square?

Accepted Answer

64

Answer

50

Answer

72

Answer

90

Question 3

What is the remainder when 47 is divided by 5?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 4

How many prime numbers are there between 10 and 30?

Accepted Answer

6

Answer

3

Answer

4

Answer

5

Question 5

What is the value of √144?

Accepted Answer

12

Answer

11

Answer

13

Answer

14

Question 6

Which of these is NOT a factor of 48?

Accepted Answer

9

Answer

6

Answer

8

Answer

12