Find the greatest number that is be divisible by 5 and can be formed from 5, 6, 7, and 8.
A whole number is divisible by 5 if its units digit is 0 or 5.
So, the digit 5 belongs in the units place.
For the number to be as great as possible, place the remaining digits by using the greatest digits in the greatest place values: 8 in the thousands place, then 7 in the hundreds place, and then the remaining digit (6) in the tens place.
Therefore, the greatest number that is divisible by 5 formed from the numbers is .