Solve 2015*2020

$$2015 \cdot 2020$$

Evaluate

$$4070300$$

Steps For Long Multiplication

First line up the numbers vertically and match the places from the right like this.

$$\begin{array}{c}\phantom{\times999}2015\\\underline{\times\phantom{999}2020}\\\end{array}$$

Now multiply the first number with the 1^{st} digit in 2^{nd} number to get intermediate results. That is Multiply 2015 with 0. Write the result 0 at the end leaving 0 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}2015\\\underline{\times\phantom{999}2020}\\\phantom{\times9999999}0\\\end{array}$$

Now multiply the first number with the 2^{nd} digit in 2^{nd} number to get intermediate results. That is Multiply 2015 with 2. Write the result 4030 at the end leaving 1 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}2015\\\underline{\times\phantom{999}2020}\\\phantom{\times9999999}0\\\phantom{\times99}4030\phantom{9}\\\end{array}$$

Now multiply the first number with the 3^{rd} digit in 2^{nd} number to get intermediate results. That is Multiply 2015 with 0. Write the result 0 at the end leaving 2 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}2015\\\underline{\times\phantom{999}2020}\\\phantom{\times9999999}0\\\phantom{\times99}4030\phantom{9}\\\phantom{\times99999}0\phantom{99}\\\end{array}$$

Now multiply the first number with the 4^{th} digit in 2^{nd} number to get intermediate results. That is Multiply 2015 with 2. Write the result 4030 at the end leaving 3 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}2015\\\underline{\times\phantom{999}2020}\\\phantom{\times9999999}0\\\phantom{\times99}4030\phantom{9}\\\phantom{\times99999}0\phantom{99}\\\underline{\phantom{\times}4030\phantom{999}}\\\end{array}$$

Now add the intermediate results to get final answer.

$$\begin{array}{c}\phantom{\times999}2015\\\underline{\times\phantom{999}2020}\\\phantom{\times9999999}0\\\phantom{\times99}4030\phantom{9}\\\phantom{\times99999}0\phantom{99}\\\underline{\phantom{\times}4030\phantom{999}}\\\phantom{\times}4070300\end{array}$$

Factor

$$2^{2}\times 5^{2}\times 13\times 31\times 101$$