Not repeating, it is 7*6*5*4 which is 840 ways
----
There are 7 choices for each of four digits, right?
74 = 2401
Chat with our AI personalities
If each can be used again, it is 7x7x7x7 or 2401 combinations. If not it is 7x6x5x4 or 840 combinations
120 combinations using each digit once per combination. There are 625 combinations if you can repeat the digits.
1,000. The list looks just like the counting numbers from 000 to 999 .
To calculate the number of 3-digit combinations using numbers 1-6, including 1 and 6, we need to consider the total number of options for each digit. Since we are including 1 and 6, there are 6 options for the hundreds place (1-6), 6 options for the tens place (1-6), and 6 options for the ones place (1-6). Therefore, the total number of 3-digit combinations is 6 x 6 x 6 = 216.
There are 15, and they are:1234 1235 1236 1245 1246 1256 1345 1346 1356 1456 2345 2346 2356 2456 3456.
if its not alphanumeric, 999999 variations