Hey all... I cam across this website which I found to be helpful to calculate the resistor needed for a Series setup (since I soldered it that way be fore looking at the calculator wizard on the site).
http://ourworld.compuserve.com/homepages/Bill_Bowden/led.htm
*I am using an unregulated power supply so I added 30% to the voltage (1.5v x 3= 4.5 + 30% = 5.85v)
Please correct me if this is not accurate or helpful. Thanks.