In order to do a factor you need to draw 3 lines vertical and 3 horizontal.
Then you write the numbers on the lower left squares.
Then on the far left side you put a number that goes into both numbers.
You keep on going until the numbers are simplified the most.
The top first numbers are the smallest fractions you can get. The to find the least common multiple you multiply all the left numbers and all the numbers on top.
To find the greateset common factor you multiply all the numbers on the left side.
