# COMBINA

### In this article

Returns the number of combinations (with repetitions) for a given number of items.

## Syntax

```
COMBINA(number, number_chosen)
```

#### Parameters

Term | Definition |
---|---|

number | Must be greater than or equal to 0, and greater than or equal to Number_chosen. Non-integer values are truncated. |

number_chosen | Must be greater than or equal to 0. Non-integer values are truncated. |

## Return value

Returns the number of combinations (with repetitions) for a given number of items.

## Remarks

If the value of either argument is outside of its constraints, COMBINA returns the #NUM! error value.

If either argument is a non-numeric value, COMBINA returns the #VALUE! error value.

The following equation is used, where N is Number and M is Number_chosen:

## Example

Formula | Description | Result |
---|---|---|

=COMBINA(4,3) | Returns the number of combinations (with repetitions) for 4 and 3. | 20 |

=COMBINA(10,3) | Returns the number of combinations (with repetitions) for 10 and 3. | 220 |