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What are all possible codes for 5 digit password using the numbers 1 2 3 4 5 6?
Wiki User
∙ 12y ago
If repeats are allowed, we can use any of the 6 digits in any of the 5 positions. This means we have 5 choices each with 6 options.
65 = 7776.
They fall in the form:
111111
111112
111113
111114
111115
111116
111121
...
666665
666666
If repeats are not allowed, we must choose which number to exclude (6 choices) and then arrange the remaining 5 (5 * 4 * 3 * 2 * 1 = 120 choices).
6 * 120 = 720.
These fall in this sort of pattern:
12345
12346
12356
12456
13456
23456
And all permutations of each of those.
Wiki User
∙ 12y ago
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How many three-digit area codes are possible if the first digit cannot be a 0?
There are 900 possible three-digit numbers not beginning with 0. (Note, however, that this question does not accurately describe the restrictions on numbers that can be used as area codes.)
How many different 4-digit codes are possible if the last digit has to be zero?
There can be 103 = 1000 codes.
How many different passwords are possible if each student must choose a password with 2-single digit numbers and 1 letter?
If the two-digit (not didgit) number must come first and the letter afterwards, then there are 2600 possible passwords. If the letter can come anywhere is the password, there are 7800.
How many different 5 digit zip codes are possible if digits are allowed to repeated?
As far as I can tell, all 5 digit numbers are potential zip codes, so there are 99999 + 1 potential zip codes, or 100,000. Many of these are not actually is use.
How many different 4-digit codes are possible if the digits cannot be repeated?
If you include 0000, ten thousand unique four digit codes are possible.
How many three-digit area codes are possible if the first digit cannot be a 0?
There are 900 possible three-digit numbers not beginning with 0. (Note, however, that this question does not accurately describe the restrictions on numbers that can be used as area codes.)
How many phone numbers are possible in a city with two area codes?
In the North American system with 3-digit area codes and 7-digit local numbers, there are slightly less than 8 million possible telephone numbers per area code, so with two area codes you have more than 15 million possible numbers. However, only a fraction of those numbers will be in use at any given time.
How many different 4-digit codes are possible if the last digit has to be zero?
There can be 103 = 1000 codes.
What is the least possible sum of two 4-digit numbers?
what is the least possible sum of two 4-digit numbers?what is the least possible sum of two 4-digit numbers?
How many different passwords are possible if each student must choose a password with 2-single digit numbers and 1 letter?
If the two-digit (not didgit) number must come first and the letter afterwards, then there are 2600 possible passwords. If the letter can come anywhere is the password, there are 7800.
How many different 5 digit zip codes are possible if digits are allowed to repeated?
As far as I can tell, all 5 digit numbers are potential zip codes, so there are 99999 + 1 potential zip codes, or 100,000. Many of these are not actually is use.
How many possible 4 digit combinations are there using 0-9. how many different combination codes are possible?
There are 210 4 digit combinations and 5040 different 4 digit codes.
How many different 4-digit codes are possible if the digits cannot be repeated?
If you include 0000, ten thousand unique four digit codes are possible.
What are all the possible 5 digit codes using the numbers 0-9?
There are 10000 such codes. Each of the numbers 0-9 can be in the first position. With each such first digit, each of the numbers 0-9 can be in the second position. With each such pair of the first two digits, each of the numbers 0-9 can be in the third position. etc.
What are all the possible 4 digit codes?
The answer to this is 9,999. Easy cuz 9999 is the last 4 digit number. (What ru trying to open a suitcase cuz u forgot the password lol (or ru a thief rofl).
What are the possible combinations in a 4 digit password?
Passwords are technically permutations, not combinations. There are 104 = 10000 of them and I regret that I do not have the time to list them. They are all the numbers from 0000 to 9999.
What is the greatest possible sum of two 4 digit numbers?
Add the two greatest possible four digit numbers. 9999 + 9999
