# Number System MCQ

## Number System MCQ

Which of the following is a prime number?
a) 12
b) 17
c) 22
d) 30

Which of the following is a composite number?
a) 11
b) 13
c) 17
d) 21

What is the smallest whole number?
a) 0
b) 1
c) 2
d) -1

Which of the following is an odd number?
a) 10
b) 15
c) 20
d) 24

Which of the following is a multiple of 5?
a) 18
b) 22
c) 25
d) 30

What is the largest prime number less than 10?
a) 5
b) 7
c) 9
d) 11

What is the unit digit of the square of any even number?
a) 0
b) 1
c) 4
d) 6

What is the sum of the first five prime numbers?
a) 10
b) 15
c) 18
d) 28

What is the remainder when 17 is divided by 5?
a) 0
b) 1
c) 2
d) 3

Which of the following is a perfect square?
a) 27
b) 36
c) 45
d) 50

What is the product of any number multiplied by 0?
a) 0
b) 1
c) The number itself
d) The number plus 1

What is the next prime number after 29?
a) 31
b) 32
c) 33
d) 34

What is the largest prime factor of 24?
a) 2
b) 3
c) 4
d) 5

What is the sum of the first five natural numbers?
a) 5
b) 10
c) 15
d) 20

Which of the following is a factor of 48?
a) 7
b) 12
c) 25
d) 36

What is the smallest multiple of 9?
a) 18
b) 27
c) 36
d) 45

What is the square root of 144?
a) 10
b) 12
c) 14
d) 16

What is the sum of the digits of 325?
a) 10
b) 12
c) 15
d) 20

What is the value of 7² – 5³?
a) -8
b) 8
c) 18
d) 24

What is the remainder when 52 is divided by 6?
a) 0
b) 1
c) 2
d) 4

What is the smallest prime number greater than 20?
a) 23
b) 26
c) 29
d) 31

What is the product of any number multiplied by 1?
a) 0
b) 1
c) The number itself
d) The number plus 1

What is the next composite number after 19?
a) 20
b) 21
c) 22
d) 23

What is the value of 4! (factorial of 4)?
a) 6
b) 12
c) 24
d) 48

What is the sum of the first ten natural numbers?
a) 45
b) 50
c) 55
d) 60

What is the largest factor of any number?
a) 0
b) 1
c) The number itself
d) The number plus 1

What is the product of any number multiplied by 10?
a) 0
b) 1
c) The number itself
d) The number plus 1

What is the value of 2³ × 3²?
a) 18
b) 24
c) 36
d) 54

What is the remainder when 75 is divided by 4?
a) 0
b) 1
c) 2
d) 3