Help with modulus operator

[scarhand]

I want to use a conditional statement that adds a line break every 15 posts.

 

Example:

 

post 1
post 2
post 3
post 4
post 5
post 6
post 7
post 8
post 9
post 10
post 11
post 12
post 13
post 14
post 15
<br /> <- added via modulus or w/e
post 16
post 17
post 18
post 19
post 20
post 21
post 22
post 23
post 24
post 25
post 26
post 27
post 28
post 29
post 30
<br /> <- added via modulus or w/e
post 31
post 32

 

I've tried using:

 

If ($postcount % 15)
  echo '<br />';

 

Maybe I'm not totally grasping the operator. Could someone tell me the proper way to accomplish this?

[scarhand]

Is this correct?:

 

If (($postcount % 15) == 0)
  echo '<br />';

[greatstar00]

u should go about if(!($postcount%15)), because 0 actually is false, and !false = true