prime and composite numbers

The smallest prime number is ___________.

• 3

• 4

• 2

• 1

Which of the given below numbers is a prime ?

• 75

• 33

• 91

• 47

Select the correct statement.

• All even numbers are composite.

• All prime numbers are odd.

• All prime numbers are odd except 2.

• All odd numbers are prime.

The greatest prime number before 40 is ______

• 39

• 37

• 31

• 41

Sia bought a packet of biscuit. The number of biscuits in a packet is a composite number .Can you tell biscuits in a packet.

• 9

• 2

• 3

• 5

Which of the following are six consecutive composite numbers less than 100?

• 91, 92, 93, 94, 95 ,96,

• 67, 68, 69, 70, 71, 72

• 51, 52, 53, 54, 55, 56

• 81, 82, 83, 84, 85, 86

Composite numbers have _________ factors.

• two

• one

• more than two

• none

The first five prime numbers are ___________.

• 2, 3 ,4, 5, 7

• 1, 2, 3, 5, 7

• 2, 3, 5, 7, 11

• 2, 3, 5, 7, 9

1. When counting numbers have exactly two factors, 1 and itself, it is called a _____________.

• even number

• odd numbers

• prime numbers

• composite number

2. A number having more than two factors is called a _____________.

• even number

• odd numbers

• prime numbers

• composite number