Contrary to popular belief, 7 and 7 may equal a triangle- if you have three 7s- one for each side of the triangle- you have 21, and 21 is legal. So you can have a triangle made of 7s.
Less than three
Also, this is one of the search results for "Love calculator", imagine I had Photoshop, experience, and fixed this to say "Tacos" and "Arkhi"