how many combinations can you make with 10 numbers?
101010
The number of combinations that are possible with 10 numbers is 1,023.
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Two children are napping.” Make Ten facts are pairs of numbers that equal 10. Being able to instantly recognize combinations that make 10 — for example, 3 + 7 = 10— helps when adding 30 + 70 = 100 or 43 + 7 = 50. Add Ten facts (10 + 3, 7 + 10) apply when 10 is added to a single-digit number.
85182
For each choice of the first two digits you have 10 choices for the third digit. Thus you have 10x10x10 = 1000 choices for the first three digits. Finally you have 10 choices for the fourth digit and thus there are 10x10x10x10 = 10 000 possible 4 digit combinations from 0-9.
118583
The number of 5-digit combinations is 10 5=100,000. So, one more than 99,999. You can generalize that: the number of N-digit combinations is 10 N. Now, this assumes that you count 00000 or 00534 as "5-digit numbers".
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Answer: There are 9,999 different combinations in a 4-digit lock. And now we have 1,000+9,000=10,000 combinations total.
77076
Assuming no five-digit number can begin with zero, there are 9 possible choices for the first digit. Then there are 10 possible choices for each of the remaining four digits. Therefore, you have 9 x 10 x 10 x 10 x 10 combinations, or 9 x 10^4, which is 90,000 different combinations.
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if you have 2 of 10 numbers, your total number is 100. the lottery is 8 numbers that can be 1-50. so there are 39,062,500,000,000 different combinations of lottery numbers.
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Additional Info: You are purchasing all possible number combinations for 5/1-39 lottery games where 5 numbers are selected from 39 total numbers ranging from 1 to 39. With your purchase you will receive 575,757 total number combinations appearing in 2 text files.
212052
There are, you see, 3 x 2 x 1 = 6 possible ways of arranging the three digits. Therefore in that set of 720 possibilities, each unique combination of three digits is represented 6 times. So we just divide by 6. 720 / 6 = 120.
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If repetition is allowed, then the number of permutations of 10 digits is 10,000,000,000.
1173500
In this case you have all ten digits [0,1,2,3,4,5,6,7,8,9] at your disposal. Assuming repetition is allowed, you can have 7-digit numbers from 1,000,000 to 9,999,999 which is a total of 9,000,000 7-digit numbers. These are all the possible 7-digit numbers. In general, there are 9 × 10^(n-1) possible n-digit numbers.
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There are 1 billion 9 digit numbers (000,000,000 through 999,999,999). There are 45 different combinations of two different numerals (10 x 9 divided by 2). There are 512 (2 to the 9th power) different permutations for any two numbers to be used in a 9 digit number.
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The number of combinations that are possible with 20 numbers is 1,048,575.
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Assuming you want the numbers grouped in groups of 10 e.g. 1,2,3,4,5,6,7,8,9,10 and then 1,2,3,4,5,6,7,8,10,9 etc. Then you will run out of room in Excel about 30% the way through - By my estimation there are 3,628,800 combinations, but only 1,048,576 rows in Excel (2007).
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There are 40,475,358 possible 6-number combinations that can be formed from numbers 1-58 . To determine this, the Combination formula is used. n choose k equals the factorial of n (divided by) all over the factorial of k times (or multiplied by) the factorial of n minus k.
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So 10+10=20 times. That's the base ten answer. As a general rule, in base n, the digit 2 appears 2n times between 1 and 100, for all base n>2.
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there are 64,000 possible combinations on a standard 40-number Master Lock. With this method, however, you can quickly narrow that down to 100 combinations, a workable number to try if you've got the time and the inclination to give it a shot.