Solve 21*156

$$21 \times 156$$

Evaluate

$$3276$$

Steps For Long Multiplication

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

$$\begin{array}{c}\phantom{\times99}21\\\underline{\times\phantom{9}156}\\\end{array}$$

Now multiply the first number with the 1^{st} digit in 2^{nd} number to get intermediate results. That is Multiply 21 with 6. Write the result 126 at the end leaving 0 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}21\\\underline{\times\phantom{9}156}\\\phantom{\times9}126\\\end{array}$$

Now multiply the first number with the 2^{nd} digit in 2^{nd} number to get intermediate results. That is Multiply 21 with 5. Write the result 105 at the end leaving 1 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}21\\\underline{\times\phantom{9}156}\\\phantom{\times9}126\\\phantom{\times}105\phantom{9}\\\end{array}$$

Now multiply the first number with the 3^{rd} digit in 2^{nd} number to get intermediate results. That is Multiply 21 with 1. Write the result 21 at the end leaving 2 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}21\\\underline{\times\phantom{9}156}\\\phantom{\times9}126\\\phantom{\times}105\phantom{9}\\\underline{\phantom{\times}21\phantom{99}}\\\end{array}$$

Now add the intermediate results to get final answer.

$$\begin{array}{c}\phantom{\times99}21\\\underline{\times\phantom{9}156}\\\phantom{\times9}126\\\phantom{\times}105\phantom{9}\\\underline{\phantom{\times}21\phantom{99}}\\\phantom{\times}3276\end{array}$$

Factor

$$2^{2}\times 3^{2}\times 7\times 13$$