0 123 456
OR if you don't want to count the zero:
1 234 567
1,234,567
The smallest four-digit number in which no digit is repeated is 1023. It starts with the smallest digit (1) to ensure it's a four-digit number, followed by the next smallest digits (0, 2, and 3) without any repetitions.
The smallest 4-digit number without any repeated digits is 1023, as it starts with the smallest possible digit (1) followed by the next smallest digits (0, 2, 3). The largest 4-digit number without any repeated digits is 9876, which uses the largest digits available in descending order.
none
1023456789
1,234,567
The smallest four-digit number in which no digit is repeated is 1023. It starts with the smallest digit (1) to ensure it's a four-digit number, followed by the next smallest digits (0, 2, and 3) without any repetitions.
The smallest 4-digit number without any repeated digits is 1023, as it starts with the smallest possible digit (1) followed by the next smallest digits (0, 2, 3). The largest 4-digit number without any repeated digits is 9876, which uses the largest digits available in descending order.
none
102
1023456789
123456.
1234567
The smallest 10-digit number with no repeated digits is 1023456789. This number starts with 1, the smallest non-zero digit, followed by the remaining digits in ascending order, ensuring all digits from 0 to 9 are used exactly once without repetition.
102345
5
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.