# Prime factorization of $2445$

The calculator will find the prime factorization of $2445$, with steps shown.

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Find the prime factorization of $2445$.

### Solution

Start with the number $2$.

Determine whether $2445$ is divisible by $2$.

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

The next prime number is $3$.

Determine whether $2445$ is divisible by $3$.

It is divisible, thus, divide $2445$ by ${\color{green}3}$: $\frac{2445}{3} = {\color{red}815}$.

Determine whether $815$ is divisible by $3$.

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

The next prime number is $5$.

Determine whether $815$ is divisible by $5$.

It is divisible, thus, divide $815$ by ${\color{green}5}$: $\frac{815}{5} = {\color{red}163}$.

The prime number ${\color{green}163}$ has no other factors then $1$ and ${\color{green}163}$: $\frac{163}{163} = {\color{red}1}$.

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: $2445 = 3 \cdot 5 \cdot 163$.

The prime factorization is $2445 = 3 \cdot 5 \cdot 163$A.