First we'll find out how many combinations are possible if zero was another integer. In the ten thousands place, there are six possible numbers. In the thousands place, there are five possible, hundreds four, tens three, ones two.
6! = 6 × 5 × 4 × 3 × 2 = 720 possible combinations
There are 720 combinations of six different digits, but some of those possibilities have zero as the first number, in which case you've made a four-digit number. So now we need to find how many four digit numbers can be made with the digits 650271. The first digit can only have one possibility (zero). The second digit can have 5 possible, the third 4, the fourth 3, the fifth 2.
1 × 5 × 4 × 3 × 2 = 120
720 - 120 = 600
1,956 different numbers can be made from 6 digits. You can calculate this by using the permutation function in a summation function, like this: Σ6k=1 6Pk = 6P1+6P2+...+6P5+6P6 What this does is calculate how many 1 digit numbers you can make from 6 digits, then how many 2 digit numbers can be made from 6 digits and adds the amounts together, then calculates how many 3 digit numbers can be made and adds that on as well etc.
How many numbers can we make with 650271 without doing the number more than 1 time
With 123 digits you can make 123 one-digit numbers.
Including leading zeroes, the answer is 720. If you don't include leading zeroes, then 600.
Ten different digits can be used to make 10C4 = 10*9*8*7/(4*3*2*1) = 210 four-digit numbers. Either numbers starting with 0 are permitted or the 10 digits do not contain a 0.
6 if all digits are different, 27 otherwise.
The sum is 22 times the sum of the three digits.
u culd make 80
9
I take it that you want to make three digits numbers with 8,7,3, and 6 without repetition. The first digit cane be selected from among 4 digits, the second from 3 digits, the third digit from 2, hence the number of three digit numbers that can be formed without repetition is 4 x 3 x 2 = 24
The number of six digit numbers that you can make from ten different digits ifrepetitions of same digit on the six digit number is allowed is 1 000 000 numbers(including number 000 000).If no repetitions of the the same digit are allowed then you have:10P6 = 10!/(10-6)! = 151 200 different six digit numbers(six digit permutations form 10 different digits).
If you want 4-digit numbers, there are 24 of them.