with 4 numbers how many combinations are there
with 4 numbers how many combinations are there The number of combinations possible with 4 numbers depends on whether repetition is allowed or not, and if order matters or not. If repetition is allowed and order matters (permutations with repetition), then there are 4 options for the first number, 4 options for the second number, 4 options for the third number, and 4 options for the fourth number. Therefore, the total number of combinations is 4 x 4 x 4 x 4 = 256. If repetition is not allowed and order matters (permutations without repetition), then there are 4 options for the first number, 3 options for the second number, 2 options for the third number, and 1 option for the fourth number. Therefore, the total number of combinations is 4 x 3 x 2 x 1 = 24. If repetition is allowed and order does not matter (combinations with repetition), then there are 7 possible combinations of 4 numbers: (1) 4 identical numbers, (2) 3 identical numbers and 1 different number, (3) 2 identical numbers