There are

If you don't care about the order the numbers are in, that total will be divided by 4! = 24 to give

**9*8*7*6 = 3024**permutations of the numbers.If you don't care about the order the numbers are in, that total will be divided by 4! = 24 to give

**126 different combinations**.The first few would be 1234, 1235, 1236, 1237, 1238, 1239, 2345, 2346The last few would be 5679, 5689, 5789, 6789