what is the value of 8 in the largest even number using the nine-digit number without repeating?
largest 9 digit number without repeating:
- must have 9 digits
999999999
- must use different digits
- zero excluded (to have the largest number)
- must be in reverse order starting from 9
987654321
- must be even, so invert last two digits
Say
987654321
987 654 312
So what is the value of 8 in this number?