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Q: How many different combinations of an 8 digit password using the same 8 digits?
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How many 4 digit combinations can be made from 6 digits?

If the 6 digits can be repeated, there are 1296 different combinations. If you cannot repeat digits in the combination there are 360 different combinations. * * * * * No. That is the number of PERMUTATIONS, not COMBINATIONS. If you have 6 different digits, you can make only 15 4-digit combinations from them.


How combination in a 9 digit number?

There are different numbers of combinations for groups of different sizes out of 9: 1 combination of 9 digits 9 combinations of 1 digit and of 8 digits 36 combinations of 2 digits and of 7 digits 84 combinations of 3 digits and of 6 digits 126 combinations of 4 digits and of 5 digits 255 combinations in all.


How many 4 digit combinations can be made with 10 digits?

"There are 10,000 different combinations"-Hey nick! love dave and jalp


How many combinations are in a 5 digit number where all digits are distinct and nonzero?

There are 126 different 5 digit combinations. Note that the combination 12345 is the same as the combination 45312.


How many 5 digit combinations are there in six digits?

about 1,0000000000000


How many 3 digit combinations there 0-9?

The order of the digits in a combination does not matter. So 123 is the same as 132 or 312 etc. There are 10 combinations using just one of the digits (3 times). There are 90 combinations using 2 digits (1 once and 1 twice). There are 120 combinations using three different digit. 220 in all.


If a password was 4 numbers how many combinations would there be?

There would be 9*9*9*9 or 6561 combinations.


How many 3 digit combinations numbers one through nine?

9!/6!, if the six different orders of any 3 digits are considered distinct combinations.


How many number combinations possible from a 13 digit number?

There is only one possible combination of a 13 digit number created from 13 digits. In a combination, the order of the digits does not matter so that 123 is the same as 132 or 312 etc. If there are 13 different digits (characters) there is 1 combination of 13 digits 13 combinations of 1 or of 12 digits 78 combinations of 2 or of 11 digits and so on There are 213 - 1 = 8191 in all. If the characters are not all different it is necessary to have more information.


What combinations can you make with numbers 1 4 7 2 5 8 0?

Assuming the digits cannot be repeated, there are 7 combinations with 1 digit, 21 combinations with 2 digits, 35 combinations with 3 digits, 35 combinations with 4 digits, 21 combinations with 5 digits, 7 combinations with 6 digits and 1 combinations with 7 digits. That makes a total of 2^7 - 1 = 127: too many for me to list. If digits can be repeated, there are infinitely many combinations.


0-9 digits how many four digit combinations can you have?

9


How many 2 digit combinations can be made with 2 digits?

Only one.


I have an alarm system keypad numbered 1-4. How many potential 4 digit combinations are there if the numbers can be repeated?

If you have 4 positions, each of which can hold any of the ten digits, you have 10 to the power 4 combinations. If you can have only 4 different digits, you have 4 to the power 4 different combinations.


How many different combinations can be created using the digits 0-9 is the first digit cannot be 0 and repetitions are not allowed?

8877690


How many 2 digit combinations can be made from 0 to 9 digits?

45 In combinations, the order of the digits does not matter so that 12 and 21 are considered the same.


How many 4 digit combinations can be made with 4 digits?

9,000 - all the numbers between 1,000 and 9,999 inclusive. * * * * * NO. Those are PERMUTATIONS, not COMBINATIONS. Also, the question specified 4 digit combinations using 4 digits. The above answer uses 10 digits. If you start with 4 digits, you can make only 1 combination.


If using numbers 1 through 9 how many different 4 digit combinations can be made with no restrictions on order or repeats?

Each digit can appear in each of the 4 positions. There are 9 digits, therefore there are 9⁴ = 6561 such combinations.


Using 4 digits what is the total number of combinations for a 4 digit lock code?

If the digits can repeat, then there are 256 possible combinations. If they can't repeat, then there are 24 possibilities.


How many different combinations can you make using 2 3 6 and 9?

If you use them only once each, you can make 15 combinations. 1 with all four digits, 4 with 3 digits, 6 with 2 digits, and 4 with 1 digit. There is also a combination containing no digits making 16 = 24 combinations from 4 elements.


How many 9 digit combinations are there from 1 to 20?

There are 167960 9 digits combinations between numbers 1 and 20.


How many 9 digit combinations are there from 1 to 20-?

There are 167960 9 digits combinations between the numbers 1 and 20.


How many different number combinations are there in 0536?

If you include the combination which comprises no numbers (the empty set), then there are 16: 1 with no digits 4 with 1 digit 6 with 2 digits 4 with 3 digits, and 1 with 4 digits.


What is the smallest three digit number with all the digits different?

102 is the smallest three digit number with different digits.


How many combinations in 3879?

There are infinite combinations that can make 3879


For her bicycle Lisa has a chain and a combination lock that has a 4-digit combination where each digit can range from 0 - 9 If adjacent digits must be different how many possible combinations can?

10x9x9x9