Whats the difference between communitive and associative property

For this case we have that by definition, the associative property states that:

The order in which the factors (or addends) are associated does not alter the product (or the sum).

On the other hand, the commutative property states that:

The order of the factors (or addends) does not alter the product (or the sum).

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐