It is 10000.If you meant ONLY 2 digits alike, then it is 10023.
-9876543 or, if only positive number are permitted, 1023456.
102 is the smallest three digit number with different digits.
smallest 8 digit number with three different digits
987654321 is the highest nine-digit number with no repeated digits.
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
No. 1000 has 4 digits and is the smallest 4-digit number. The smallest 3-digit number is 100.