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.
Greatest number = 76432
Smallest number = 23467
Difference = 76432 − 23467
Therefore, the difference between the greatest and the least number that can be written using the digits 6, 2, 7, 4, 3 each only once is 52,965.