use digits 45678 only write the greatest number poossible with 7 in the ten thousands place
79999
78,654
Ok
To find the greatest number possible with 7 in the ten-thousands place using the given digits (4, 5, 6, 7, 8), we need to place the remaining digits in descending order.
The largest possible number we can make with the remaining digits is 8654. So, arranging the digits in the correct order, the greatest number would be:
78,654