10000. One less than that is 9999, which is four digits.
10001
-5
121
1005
135
10000
The least three-digit number that is divisible by both 5 and 9 is 135.
10000
what is the least 5- digit number which is exactly divisible by 36
10001
100,035
10000 = 1002.
1035
-5
Any 5-digit number is greater than a 4-digit one.
121
1005