The greatest number from these numbers is- 8743.

If I helped you plz mark it as best
The greatest no. out of these digts :- 4,3,7,8.
is 8734 for the greatest no. u always have to always make the digits standing in descending order and the vice versa for the smallest no. by standing them in ascending answer.
hope this helps u !!!!!!!!!
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i had written the calculations and u copied mine you have to answer the question that is why u deleted