898
999
9999
The smallest 3-digit palindrome is 101.
999
929
A palindrome reads the same forward and in reverse. This tells me that at leastthe first digit and the last digit must be the same. So it's not possible to have a6-digit palindrome "with no same digits".The largest 6-digit palindrome, with just enough repetition of digits to make it apalindrome and no more, would be 987,789 .
8778
-1
The smallest 3-digit palindrome number is 101.
999 is the largest 3-digit number.
040