Question

A shopkeeper has to arrange 72 books in equalpiles in how many different ways can he do it

Answer 1

Step-by-step explanation:

he can do in this way

1. 72 piles with 1 book in each
2. 36 piles with 2 book in each
3. 24 piles with 3 book in each
4. 18 piles with 4 book in each
5. 12 piles with 6 book in each
6. 08 piles with 9 book in each

And vica versa means

9 of 8

and many more

Answer 2

Step-by-step explanation:

which of them is not a prime