999999
The largest six digit number period is 999999. The largest number meeting your criteria is 998949.
Its impossible, there are only 5 single digit numbers that are not prime
The number 9 is the greatest one-digit number.
fcfdfd
The greatest six-digit number is 199,999.
The greatest six-digit number is 199,999.
999999
Six.
987654
90001smallest six-digit whole number= 100000greatest four-digit whole number = 9999100000 - 9999 = 90001
987,654
987653
The number that matches your criteria is... 998949
100000 - 9999 = 90001
100000 - 999 = 99001
999,999. It is an odd number. It is so easy :). If you asked the question wrongly, the greatest odd number can be something else but I don't know