How many combinations can be made from1234?

Answer 1

Using all four numbers with non repeating, you get 24 different combinations.

Using all four numbers with numbers repeating, you get 256 combinations.

The process to find this answer is simple. For non repeating, take the number of possibilities (Let's call this 'n') you have and multiply by one less it self, because the next possible number of outcomes is whatever you have left, since you took one possibility out. (n-1 = x; x times n). Then do it again. (x-1 = y; y times n) And do this over and over until you are only left multiplying your possibilities by 1. You stop there and you have arrived at your answer.

For repeating numbers, it is much more simple, you simply multiply the number of possibilities by itself for how many inputs you want. Let's say for this situation, 1,2,3,4. You have 6 inputs, so an example number would look like this. 134234. To find out how many possibilities look like that, you simply multiply your number of possibilities to the sixth power. Or this = 4*4*4*4*4*4. One four for every number space.

Hopefully this helps with any other combination questions you have.