Find the difference between the greatest and the least number that can be written using the digits 6, 2, 7, 4, 3 each only once.

Explanation

To find the difference between the greatest and the least number that can be formed using the digits 6, 2, 7, 4, and 3, we can follow these steps:

### Step 1: Identify the digits
The digits we have are 6, 2, 7, 4, and 3.

### Step 2: Form the greatest number
To form the greatest number, we need to arrange the digits in descending order (from largest to smallest):
- The largest digit is 7.
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