La Primitiva Lucky Numbers Generator. Generate Your Lucky Number to use in La Primitiva Draws - Slide your Finger along the Slider to select how many Number Rows you want to Generate - Tap any Button or Shake the Phone to Generate Your La Primitiva Numbers. The last number in Blue is the "R" Number - Good Luck - Please give our App 5 stars and a Google. Thankyou! " FUN ONLY ".