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How many different 6 digit combinations can be made from 10 numbers if you can repeat a number?
Wiki User
∙ 6y ago
There are just 5,005.
- There are 10C6 = 210 combinations with 6 different numbers.
- There are 10C5 = 252 combinations with 5 different numbers. One of these needs to be duplicated and the one to be duplicated can be chosen in 5 ways so there are 1260 of these.
- There are 10C4 = 210 combinations with 4 different numbers. Either one of them appears three times or two are doubled. That can be done in 10 ways so there are 2,100 of these.
- There are 10C3 = 120 combinations with 3 different numbers. Either one of them appears 4 times, or one twice and another three times, or all three appear twice. That can be done in 10 ways so there are 1,200 of these.
- There are 10C2 = 45 combinations with 2 different numbers. Either one of them appears 5 times, or one twice and another four times, or both three times. That can be done in 5 ways so there are 225 of these.
- There are 10C1 = 10 combinations with just 1 number repeated six times.
Add these together.
Wiki User
∙ 6y ago
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How many combinations of 4 numbers can be made from the set of numbers 246789?
If the numbers are allowed to repeat, then there are six to the fourth power possible combinations, or 1296. If they are not allowed to repeat then there are only 360 combinations.
How many 10 number combinations can be made out of 10 numbers?
If you are assuming you can repeat any of the numbers then: nx where n=number of options and x= number of spaces using the formula assuming all numbers 0-9 then: 1010 10,000,000,000 is your answer. If numbers can not repeat and have to be used we use the formula: n! Where n is the number of options.Since you want 10 numbers we will do 10! 10! 10*9*8*7*6*5*4*3*2*1 362880 is your answer.
Do irrational numbers repeat?
No. Irrational numbers are those that cannot be represented as a fractions. Any number which repeats could be represented as a fraction.
What is an irrational number?
Irrational numbers are numbers that cannot be expressed as fractions with whole numbers. They are generally roots (such as the square root of two) or constants (such as pi and e). They are interesting because they cannot be exactly expressed as decimal numbers because they never terminate or repeat themselves.an irrational number is a number that goes on and on for a long time like pi
What numbers from 1 to 100 are prime when the digits are reversed?
imm they would b the same wouldn't they, except number 1 may repeat itself (number 1 and 100-001).
How many combinations of six numbers can be had from seven numbers?
The number of combinations of six numbers that can be made from seven numbers will depend on if you can repeat numbers. In all there are over 2,000 different numbers that can be made.
How many combinations are there for a 6 digit number using the numbers 0 to 9?
If you can repeat the numbers within the combination there are 10,000 different combinations. If you cannot repeat the numbers within the combination, there are 5040 different combinations.
How many different three digit number combinations can be made with 0-9 with no repeat numbers when order of the number does not matter?
9
How many different 6 number combinations can be made starting from 1 to 50 You can repeat numbers in the sequence?
506 = 15,625 million
How many combinations of 4 numbers can be made from the set of numbers 246789?
If the numbers are allowed to repeat, then there are six to the fourth power possible combinations, or 1296. If they are not allowed to repeat then there are only 360 combinations.
How many 4 number combinations are there in the numbers 0 to 9 but you can't repeat the same number?
10P4 = 5040
How many 4 number combinations are there in the numbers 0 to 5?
The first digit can be one of five integers (1 to 5) The second - fourth digits one of six integers (0 to 5). So: number of (valid) combinations is 5*6*6*6=1080 * * * * * This gives the number of permutations, not combinations. I am working on the latter.
How many combinations can you make from the numbers 1 2 3 4 5 not multiplying?
The rearrangement of 5 figure numbers will be 5x4x3x2x1 which is 120 combinations, when you don't repeat a number.
How many number combinations of 6 numbers are possible from 17 numbers?
If they can repeat, then: 17^6=24,137,569 If they can't repeat, then: 17*16*15*14*13*12=8,910,720
How many combinations of 6 numbers are there in 56 numbers?
Assuming you cannot repeat a single number within the combinations, there are a total of 56 x 55 x 54 x 53 x 52 x 51 = 23377273920 combinations of 56 numbers.
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 many 3 digit combinations in numbers 1-6 including 1 and 6?
If you are able to repeat numbers you would take 6 * 6 * 6 = 216 combinations. If you are not able to repeat numbers you would take 6 * 5 * 4 = 120 combinations.
