Find the sum of all the numbers that can be formed with the digits 2, 3, 4, 5 taken all at a time.

Explanation

To find the sum of all the numbers that can be formed with the digits 2, 3, 4, and 5 taken all at a time, we can follow these steps:

### Step 1: Determine the total number of permutations
The total number of permutations of the digits 2, 3, 4, and 5 can be calculated using the factorial of the number of digits:
\[ n! = 4! = 24 \]
This means there are 24 different numbers that can be formed using these four digits.
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