cara menyelesaikan fpb dan kpk 36 dan 40

 faktor 36 = 2^2 X 3^2
faktor 40 = 2^3 x 5
fpb = 2^2 = 4
kpk = 2^3 x 3^2 x 5 = 360

|36 |40 |
2| 18| 20 |
2 | 9 | 10 |
2 | 9 | 5. |
3 | 3| 5. |
3 | 1 | 5. |
5 | 1 | 1. |
fpb 2x2 = 4
kpk 2x2x3x3x5=