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How many combinations are there for the last four digits of a phone number if any digit may be used in any position?
Wiki User
∙ 14y ago
10,000 - 0000,0001,0002...9999 Since there is a possible 10 digits for each of the 4 positions, the following formula can be used: 104 = 10,000
Wiki User
∙ 14y ago
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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.
What are the combinations for a 3 digit number 1-4?
Assuming the digits are not repeated, there are four combinations:123, 124, 134 and 234.
How many combinations in 3879?
There are infinite combinations that can make 3879
How many 5 digit combinations are there in six digits?
about 1,0000000000000
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.
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.
What is the digit and position of 645?
645 is a 3-digit number. A single digit in a number can have a place value. A number with several digits cannot.
What are the combinations for a 3 digit number 1-4?
Assuming the digits are not repeated, there are four combinations:123, 124, 134 and 234.
How many combinations in 3879?
There are infinite combinations that can make 3879
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 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.
How many 5 digit combinations are there in six digits?
about 1,0000000000000
What are the possable 3 digit combinations you can make out of 1-9?
The number of possible 3 digit combinations you can make out of 1-9 with outrepeated digits is:9C3 = 9!/(3!(9-3)!) = 84
How many combinations are there for a 8 digit number 1-8?
Using the eight digits, 1 - 8 ,-- There are 40,320 eight-digit permutations.-- There is 1 eight-digit combination.
What is the number of possible 9 digit social security numbers if the digits can't be repeated?
9x8x7x6x5x4x3x2x1 or 9! which equals 362880 possible combinations if no digits are repeated
