## Factor(integer)

##### Last updated September 06, 2001

**Version:** 1 |
**Requires:** CF5 |
**Library:** MathLib

**Description:**

Returns a list of all factors for a given positive integer.

**Return Values:**

Returns a comma delimited list of values.

**Example:**

```
<CFSET n=100>
<CFOUTPUT>
Given n=100
The factors of #n# are: {#Factor(n)#}
</CFOUTPUT>
```

**Parameters:**

Name | Description | Required |
---|---|---|

integer | Any non negitive integer greater than or equal to 1. | Yes |

**Full UDF Source: **

```
/**
* Returns a list of all factors for a given positive integer.
*
* @param integer Any non negitive integer greater than or equal to 1.
* @return Returns a comma delimited list of values.
* @author Rob Brooks-Bilson (rbils@amkor.com)
* @version 1.1, September 6, 2001
*/
function factor(integer)
{
Var i=0;
Var Factors = "";
for (i=1; i LTE integer/2; i=i+1) {
if (Int(integer/i) EQ integer/i) {
Factors = ListAppend(Factors, i);
}
}
Return ListAppend(Factors, integer);
}
```

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