10 2,5
50 25,2 5,5,2
18 9,2 3,3,2
32 16,2 8,2,2 4,2,2,2 2,2,2,2,2
312 156,2 78,2,2 39,2,2,2 13,3,2,2,2
31 is prime. No tree.
43 is prime. No tree.
29 is prime. No tree.
12
A factor tree is when you take a number and bring it down to prime numbers. You do this by diving the number, and drawing to lines from the number and putting the two numbers that multiply into the starting number. You do that until you have all prime numbers. This skill can be usefull for greatest common factor and lowest commen multiple.
82 2,41
22 2,11