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How many four digit numbers can be formed out of 123 if a digit can be repeated?
Wiki User
∙ 14y ago
There are 3 values (1, 2, 3) for each of the 4 digits. Therefore, there are 3*3*3*3 or 81 four digit numbers that can be formed.
Wiki User
∙ 14y ago
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How many four digit number can be formed by the digits 5 6 7 8 What are the 3 highest possible numbers?
8765 and 8756 and 8675 There are 24 total.
How many four digit whole numbers are there such that the thousand digit is odd the hundreds digit is even and all four digits are different?
5*5*4*4 = 400
Possible four digit numbers using 0-9?
If numbers can be repeated and zeroes are allowed to lead, this is simply all natural numbers in the set {0000 - 9999}, for a total of 10,000 possible combinations. If numbers cannot be repeated, this becomes a permutation problem; out of 10 possible digits, permute four of them. This evaluates as: nPr = n! / (n-r)! 10P4 = 10! / (10-4)! 10P4 = 1 * 2 * 3 * ... * 6 * 7 * 8 * 9 * 10 / 1 * 2 * 3 * 4 * 5 * 6 10P4 = 7 * 8 * 9 * 10 10P4 = 5040 There are thus 5,040 possible combinations of four of the digits in 0-9 if any digit is not used twice and 0 is allowed to be a leading digit.
What four consecutive 3-digit numbers is 866?
The numbers are 215, 216, 217 and 218.
What four consecutive 3 digit numbers is 866?
The numbers are 215, 216, 217, and 218.
How many four-digit numbers can be formed with the numbers 1234 if no digits can be repeated?
4*3*2*1 = 24
How many four digit numbers are possible from the digit 0'1'2'3'4 numbers may be repeated?
625 if numbers can have leading 0s, 500 otherwise.
How many numbers of one or more digits can be formed from the digits one two three four if no digit may be repeated in a number?
24+24+12+4=64.
How many four-digit numbers can be formed if the leading digit cannot be zero?
There are 9 x 10 x 10 x 10, or 9000 four-digit number that can be formed if the leading digit cannot be zero.
How many four digit numbers from the digits 1 2 3 4 5?
If the digits can be repeated, then there are (5 x 5 x 5 x 5) = 625 different four-digit numbers.If the digits can't be repeated, then there are (5 x 4 x 3 x 2) = 120 different four-digit numbers.
How many different four-digit numbers can be formed from the digits 0 through 9?
10,000
How many four digit numbers can be formed from the digits 1 and 2 if repetitions are allowed?
pizza
What is the greatest four-digit even number with no repeated digits?
The greatest 4-digit number with no repeated digits is... 9876
How many 3-digit numbers can be made using the digits 4 6 7 9?
If the digits may be repeated, there are four choices for the first digit, four choices for the second, and four choices for the third. Thus there are 4x4x4 = 64 possible three-digit numbers with those digits. If the digits may not be repeated, there are still four choices for the first digit, but then only three remaining choices for the second, and then just two choices for the third. In this case there are only 4x3x2 = 24 possibilities.
How many four digit numbers can be formed using all digits if same digit on four place is not allowed example 5555 is not allowed?
Total possible 4-digit numbers= 1000, 1001,...,9999 = 9000 Total with same digit numbers = 1111,2222,...,9999 = 9 9000 - 9 = 8991
How many four digit numbers can be formed using 3 only once but 3 must be used in all such numbers?
1
How many odd four digit numbers can be formed from the digits 1 2 3 and 4?
128
