The Division Method

1.

See if the number is divisible by $2$. If it is, put $2$ to the right of the line and your number divided by $2$ to the left of the line. See below for examples that show what it looks like.

2.

If the number isn’t divisible by $2$, check if it’s divisible by the next prime number, $3$. If it is, put $3$ to the right of the line, and your number divided by $3$ to the left. If your number isn’t divisible by $3$, you have to check for the next prime number, which is $5$. Keep doing this until you find a prime number your number is divisible by.

3.

Each time you find a prime factor, put it on the right side of the line and the previous number divided by the newest prime factor to the left of the line.

4.

Repeat these steps until you get $1$ as the answer to the last division.