To find the greatest number that can be formed using the digits 5, 3, 1, 4, and 7, we need to arrange these digits in descending order. The descending order means we start with the largest digit and proceed to the smallest.
Here are the digits in the set:
- 5
- 3
- 1
- 4
- 7
Arranging these digits from largest to smallest gives us:
- 7
- 5
- 4
- 3
- 1
Now, by combining these digits, the greatest number is: 75431.
So, the answer is that the greatest number that can be formed using each of the digits 5, 3, 1, 4, and 7 is 75431.