Secondary School (English Medium) (5 to 8) Class 6 - CBSE Question Bank Solutions for Mathematics

Write the smallest odd prime number.

Make a list of seven consecutive numbers, none of which is prime.

What are composite numbers? Can a composite number be odd? If yes, write the smallest odd composite number.

What are twin primes?
Write all the pairs of twin primes between 50 and 100

Find if the following number is a prime number:
87

Find if the following number is a prime number:
89

Find if the following number is a prime number:
63

Find if the following number is a prime number:
91

What are co-primes?

Give examples of five pairs of co-primes.

Are co-primes always primes? If no, illustrate your answer by an example.

Express the following number as the sum of two odd prime:
36

Express the following number as the sum of two odd prime:
42

Express the following number as the sum of two odd prime:
84

Express the following number as the sum of two odd prime:
98

Express the following odd number as the sum of three odd prime number:
31

Express the following odd number as the sum of three odd prime number:
35

Express the following odd number as the sum of three odd prime number:
49

Express the following odd number as the sum of three odd prime number:
63

Express the following number as the sum of twin prime:
36