Answer the following question.
What is the smallest odd prime number?
 

Shobha is not clear about some concepts of factors and multiples. She has written the wrong statement. Help her to write the correct statement.

Shobha is not clear about some concepts of factors and multiples. She has written the wrong statement. Help her write the correct statement.

Shobha is not clear about some concepts of factors and multiples. She has written wrong statement. Help her write the correct statement.

Shobha is not clear about some concepts of factors and multiples. She has written one wrong statement. Help her to write the correct statement.

Shobha is not clear about some concepts of factors and multiples. She has written wrong statement. Help her write the correct statement.

Use the factor tree method to find the prime factors which repeat twice for the following.

$84$

The prime factorisation of $100$ can be written as $a\times a\times b\times b$. What is the value of $a+b$?

When we write $212$ as a product of prime factors, we get $2\times 2\times a$. Write the value of $a$ in the answer box.