Question

In how many ways the number $7056$ can be resolved as a product of $2$ factors.

• A. 17
• B. 18
• C. 22
• D. 23

Answer 1

Answer: (D)

23

We can write 7056 as : $7^2{.3}^2{.2}^4$
So number of ways of writing it as a product of 2 factors = $\frac{(2+1)(2+1)(4+1)+1}{2}$
$=\frac{46}{2}$
$=23$