 # Quick Answer: How Many Unique Combinations Are There?

## How do you find the number of unique combinations?

The formula for combinations is generally n.

/ (r.

(n — r)!), where n is the total number of possibilities to start and r is the number of selections made.

In our example, we have 52 cards; therefore, n = 52.

We want to select 13 cards, so r = 13..

## How many combinations of 7 numbers are there?

127Answer and Explanation: The number of combinations that are possible with 7 numbers is 127.

## How many combinations of 1234 are there?

24Single (24-way): Each of the four positions has a different digit. For example, 1234. Each combination of this type has 24 different box combinations, so your odds of winning by playing one “single” box combination would be approximately 1 in 417.

## How many combinations of 6 are there?

Answer and Explanation: For any group of 6 numbers and letters, there are a possible 720 different permutations or combinations that can be made.

## How many permutations of 4 are there?

256 permutationsIn the first position we have 4 number options, so like before place a “4” in the first blank. Since we are allowed to reuse numbers, we now have 4 number options available for the second digit, third digit, and fourth digit as well. By allowing numbers to be repeated, we end up with 256 permutations!

## How do you find all possible combinations?

How to calculate combinations? – combination formulaC(n,r) is the number of combinations;n is the total number of elements in the set; and.r is the number of elements you choose from this set.

## How many different combinations are there?

Thus, for the letters, there are 26 possibilities for each of the 3 slots, and for the numbers, there are 10 possibilities for each of the 3 slots. The total number of combinations is then: 26 x 26 x 26 x 10 x 10 x 10 = 17,576,000 ≈ 18 million.

## How many combinations of 4 items are there?

If you meant to say “permutations”, then you are probably asking the question “how many different ways can I arrange the order of four numbers?” The answer to this question (which you got right) is 24.

## How many combinations of 8 numbers are there?

40,320 different combinationsNote: 8 items have a total of 40,320 different combinations.