Prime factorization of $$$3993$$$

Find the prime factorization of $$$3993$$$.

Start with the number $$$2$$$.

Determine whether $$$3993$$$ is divisible by $$$2$$$.

Since it is not divisible, move to the next prime number.

The next prime number is $$$3$$$.

Determine whether $$$3993$$$ is divisible by $$$3$$$.

It is divisible, thus, divide $$$3993$$$ by $$${\color{green}3}$$$: $$$\frac{3993}{3} = {\color{red}1331}$$$.

Determine whether $$$1331$$$ is divisible by $$$3$$$.

Since it is not divisible, move to the next prime number.

The next prime number is $$$5$$$.

Determine whether $$$1331$$$ is divisible by $$$5$$$.

Since it is not divisible, move to the next prime number.

The next prime number is $$$7$$$.

Determine whether $$$1331$$$ is divisible by $$$7$$$.

Since it is not divisible, move to the next prime number.

The next prime number is $$$11$$$.

Determine whether $$$1331$$$ is divisible by $$$11$$$.

It is divisible, thus, divide $$$1331$$$ by $$${\color{green}11}$$$: $$$\frac{1331}{11} = {\color{red}121}$$$.

Determine whether $$$121$$$ is divisible by $$$11$$$.

It is divisible, thus, divide $$$121$$$ by $$${\color{green}11}$$$: $$$\frac{121}{11} = {\color{red}11}$$$.

The prime number $$${\color{green}11}$$$ has no other factors then $$$1$$$ and $$${\color{green}11}$$$: $$$\frac{11}{11} = {\color{red}1}$$$.

Since we have obtained $$$1$$$, we are done.

Now, just count the number of occurences of the divisors (green numbers), and write down the prime factorization: $$$3993 = 3 \cdot 11^{3}$$$.

The prime factorization is $$$3993 = 3 \cdot 11^{3}$$$A.