9!/6!, if the six different orders of any 3 digits are considered distinct combinations.
That depends on how many of the digits are repeated. If no digits are repeated, you have 9 choices for the first digit, 8 choices for the second, etc.; for a total of 9 x 8 x 7 x 6 x 5 x 4.
Assuming no duplication or repetition, 720
Six.
Assuming each "digit" actually has 10 different states, there are one million combinations possible in a six-digit combination lock. However, many combination lock designs actually have fewer than 10 different states per "digit", resulting in far fewer actual combinations on such locks.
9!/6!, if the six different orders of any 3 digits are considered distinct combinations.
That depends on how many of the digits are repeated. If no digits are repeated, you have 9 choices for the first digit, 8 choices for the second, etc.; for a total of 9 x 8 x 7 x 6 x 5 x 4.
Assuming no duplication or repetition, 720
Six.
If you use each number once, there are six combinations.
Assuming each "digit" actually has 10 different states, there are one million combinations possible in a six-digit combination lock. However, many combination lock designs actually have fewer than 10 different states per "digit", resulting in far fewer actual combinations on such locks.
The number of six digit numbers that you can make from ten different digits ifrepetitions of same digit on the six digit number is allowed is 1 000 000 numbers(including number 000 000).If no repetitions of the the same digit are allowed then you have:10P6 = 10!/(10-6)! = 151 200 different six digit numbers(six digit permutations form 10 different digits).
Six combinations: 123, 132, 213, 231, 312, 321
There are 500000 such numbers.
There are 5760 such numbers.
There are only six combinations using you rule. They are:- 235, 237, 325, 327, 723 and 725
999999 is six digits and odd.