Playing with Nu...

Write all the factors of 40 in blue circle and all the factors of 60 in green circle.
1) What are the factors written in common part of both the circles?
2) Which is biggest common factor of 40 and 60? 

HCF of $$95$$ and $$152$$ is:

Using multiplication chart, find all the factors of $$36$$.

Write all the factors of 5, 8 and 10. Find out all the common factors of these numbers. Which is highest common factor? 

From the multiplication chart, find all the factors of 20

Choose the largest three digit prime number.

If Meena is having 28 bangles and she wants to make groups of bangles such that no any bangle is left, then how many bangles can she put in each group? Write all the possibilities.

Identify prime numbers from the followings:
$$3, 6, 7, 9, 13, 24, 29, 31, 49, 53$$

What is the largest $$4-$$digit prime number?

How many prime numbers are there?
$$7, 9, 11, 16, 29, 34, 52, 53, 61, 71, 77, 87, 89, 92$$