23 is already prime; it doesn't need a tree.
Least Common Multiple (LCM) for 40 4 is 40.
40, 80, 120, 160, 200, 240, 280, 320, 360, 400 . . .
The Least Common Multiple (LCM) for 40 24 is 120.
Factors of 15 are: 1 3 5 and 15 of which 3 and 5 are prime factors
1,2,4,5,8,10,20,40 1,3,5,9,15,45
1 and 2
1, 2, 4, 5, 8, 10, 20, 40
200
1600
2
80%
$20
50% of 40 is 20.
8/40 is 0.2 or 20%
The GCF is 20.
1, 2 and 4.