0
81
As there are no limits stated then you can have a number comprising a repeated single digit (such as 2222), two pairs of numbers (e.g. 2244) or three different numbers (such as 2462).
The first digit can be one of any of the 3 numbers.
The second digit can be one of any of the three numbers, as can the third digit and also the fourth.
Then you can have 3 x 3 x 3 x 3 = 81 different 4-digit numbers using the three given numbers.
What else can I help you with?
How many 6 digit numbers can be formed using the digits 123456789?
There are 60480 numbers.
How many 3 digit numbers can be formed from the digits 12345 if the digits cannot be repeated?
1 set
How many six digits numbers can be formed using 1234?
There are 4^6 = 4096 such numbers.
How many four digits numbers can be formed using 0578?
If the digits are all different then 18. Otherwise, 192.
How many 6 digit numbers can be formed form the digits 123456 if no digits can be repeated?
6*5*4*3*2*1=720 possible numbers
How many 5 digits numbers can be formed using digits?
99999
How many 4 digit numbers can be formed from digits 123456789?
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
How many 5 digit numbers can be formed from the digits 012 if any of the digits can be repeated?
500
How many 4 digit numbers can be formed from the digits 7341 if none of the digits can be repeated?
24
How many 4 digit numbers can be formed from the digits 1234567 with no duplicate numbers?
840
How many 6 digit numbers can be formed using the digits 123456789?
There are 60480 numbers.
How many 3 digit numbers can be formed from the digits 102987?
180 of them.
How many 4 digit numbers can be formed from the digits 123456789?
There are 3024 of them.
How many 3 digit numbers can be formed from the digits 12345 if the digits cannot be repeated?
1 set
How many digits numbers each less than 500 can be formed from the digits 13467 if repetitions is allowed?
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.
How many six digits numbers can be formed using 1234?
There are 4^6 = 4096 such numbers.
How many four digits numbers can be formed using 0578?
If the digits are all different then 18. Otherwise, 192.
