A combination is a group of items where orderdoes notmatter.

The COMBIN functiondoes notallow repetitions.

To count combinations thatallowrepetitions, use theCOMBINA function.

Excel COMBIN function

To countpermutations(combinations where order does matter) see thePERMUT function.

This result can be seen in cell D8 in the example shown.

The COMBIN function takes two arguments:number, andnumber_chosen.Numberis the number of different items available to choose from.

Excel COMBINA function

Thenumber_chosenargument is the number of items in each combination.

Both arguments are required.

The COMBIN functiondoes notallow repetitions.

Excel PERMUT function

To count combinations thatallowrepetitions, use theCOMBINA function.

COMBINA Function

The Excel COMBINA function returns the number of combinations with repetitionsallowed.

To count combinations thatdo notallow repetitions, use theCOMBIN function.

Excel PERMUTATIONA function

The PERMUT functiondoes notallow repetitions.

For example, =FACT(3) returns 6, equivalent to 3 x 2 x 1.

Excel FACT function