Playing with numbers

Which of the following is smallest prime number:

• 1

• 2

• 3

• 4

The only prime number which is also even

• 1

• 2

• 3

• 4

If a number is divisible by 2 and 5 both then is divisible by

• 2

• 5

• 7

• 10

Which of the following number is divisible by 3

• 121

• 123

• 124

• 122

A number is divisible by 4 if its

• last digit is 4

• last digit is 0

• last two digits are divisible by 4

• last digit is 8

The HCF of two co prime numbers is 1

• True

• False

The numbers having more than two factors are called

• Prime numbers

• Composite numbers

• Even numbers

• Odd numbers

Which number is neither prime nor composite

• 1

• 0

• 2

• 3

In which of the following expressions, prime factorisation has been not done?

• 24 = 2 × 2 × 2 × 3

• 56 = 7 × 2 × 2 × 2

• 70 = 2 × 5 × 7

• 54 = 2 × 3 × 8

Which of the following numbers is divisible by 11?

• 165

• 111

• 222

• 100