what are the possible combinations of 7 numbers?
438518
You mean how many possible 7 digit numbers using 0-9. 10^7 or 10 million, or 10,000,000 (one followed by seven zeroes) which is a set that includes 0000000.
1271554
There are four possible combinations. All three in series. All three in parallel.
178666
There are one million of them (999999 + 1). If repetition is not allowed (which is probably what you are referring to in your last sentence), you can pick any of ten digits for the first number, any of the nine remaining for the second, and so forth. This is 10 times 9 times 8 times 7 times 6 times 5 or 151,200.
1422119
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.
241307
When you choose a nine-number Combination Play, the nine numbers are arranged in combinations of seven numbers, giving you 36 unique selections. For each such unique selection, you also receive two sets of computer-generated numbers, for a total of 108 seven-number combinations.
275875
-- we're in a position to answer your original question. With 8 items on your menu, the number of possible combinations will be 28 = 256. And if you bought all 8 items, and tried to arrange them in different orders on your tray, the number of arrangements ('permutations') would be 8! = 40320.
589379
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. 45 x 512 = 23,040 - 10 = 23,030.
1088151
Additional Info: You are purchasing all possible number combinations for 6/1-53 lottery games where 6 numbers are selected from 53 total numbers ranging from 1 to 53. With your purchase you will receive 22,957,480 total number combinations appearing in 460 text files with up to 1 million number combinations per file.
1246426
All Possible Number Combinations For 6/1-39 Lottery Games. Included with Your Order: All Possible 6/39 Number Combinations. Total Combinations - 3,262,623.
471197
Included with Your Order: All Possible 5/35 Number Combinations. Total Combinations - 324,632.
469496
Hence the total number of possibilities to arrange the even numbers from 0 to 9 without repetition of any digits =9X9X8X7=4536 ways.
519444
Included with Your Order: All Possible 5/50 Number Combinations. Total Combinations - 2,118,760.
903955
6 x 5 x 4 x 3 = 360 possible combinations. Given a 4 digit integer. each digit can be 1 through 6. No two digits the same.
527447
2! See for 11 numbers there can be 9 ways for each number for 1st nine places since 0 can't be the fist number and next two are repeated from 10 numbers hence 10!/2! So 99 combinations have 10!/2! Permutations hence total ways are 99*10!/2!
47858
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.
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.
450241
There are 60 of them. Using the same argument as above there are 60 60 = 3600 two "digit" combinations and 60 60 60 = 216000 three "digit" combinations.