Question

Solve it ques 4.

Kindly do in a piece of paper.

No Spamming

Answer 1

hi please mark me as brainliest

Answer 2

Solution :

This is a factor tree as we see.
How do we fill it?

Lets start from the end.
We see that 3 and 7 are at the last branch.

So, number before it = 3×7 = 21.

Now, 21 and 2 are at the second branch.

So, number before it or the number whose factors are given = 2×21 = 42.

Thanks @MiniDoraemon for raising a Question.
Question : Why do we Multiply?
Its Bcoz Prime Factorisation is Same as repeated multiplication.
eg. 42 = 2×3×7

Hope It Helps