How many 4 number combinations can 10 numbers make?

Each 256 combinations from the 10k possible combinations with the 10 digits, is the results of the combination of 4 digits.

How many possible combinations are there for a 4 digit keypad?

10,000 possible combinations
There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code.

How many combinations of 10 numbers are there?

In your case the set of characters is the ten digits, so [math]m=10[/math]. The number of digits in the string is also ten, so [math]n=10[/math]. As a result the total number of possible phone “numbers” is [math]10^{10}=10\,000\,000\,000[/math…

How many 10 digit number combinations are there?

10,000,000,000
If repetition is allowed, then the number of permutations of 10 digits is 10,000,000,000.

How many combinations are there with 10 numbers and letters?

Since there are 26 letters and 10 digits you have a total of 36 characters to choose from for each position. Starting from the left you can fill in the first position in 36 possible ways. For each of the 36 possibilities for the first character there are 36 possibilities for the second character.

How many possible combinations can a 4 digit code have?

A four digit code could be anything between 0000 to 9999, hence there are 10,000 combinations if every digit could be used more than one time but since we are told in the question that one digit only may be used once it limits our number of combinations. I “… A code have 4 digits in a specific order, the digits are between 0-9.

How many possible values can a 4 digit lock have?

for a 4 digit lock, the first digit can be any number from 0–9 → 10 possible values. the second digit can be any number from 0–9 → 10 possible values. the third digit can be any number from 0–9 → 10 possible values.

How many possible combinations are there for a 4-row oddball lock?

Now if the lock had the four (rotating) rows, but only had 8 digits in each row, such as the numbers 1–8, no 0s and no 9s. Still using the 4th power, 8x8x8x8, would give you 4,096 possible combinations for this oddball lock. Quite a difference two extra digits (numbers) makes, 10 numbers more than doubling 8 numbers.,for possible combinations.

What is the lowest and highest possible combinations on a keypad?

The lowest is ‘1234’, the highest is ‘7890’. The reason why it is only 210 combinations is that the digits can be entered in any order, but they all have to be different – so 1234 = 2341 = 3412 = 4123 = 1243 = 1324 = 1342 = …. The thing is, repeated digits have no effect, so ‘1234’ is the same as ‘412142321’. I see these locks in so many places.