Solve 400*78

$$400 \times 78$$

Evaluate

$$31200$$

Steps For Long Multiplication

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

$$\begin{array}{c}\phantom{\times99}400\\\underline{\times\phantom{999}78}\\\end{array}$$

Now multiply the first number with the 1^{st} digit in 2^{nd} number to get intermediate results. That is Multiply 400 with 8. Write the result 3200 at the end leaving 0 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}400\\\underline{\times\phantom{999}78}\\\phantom{\times9}3200\\\end{array}$$

Now multiply the first number with the 2^{nd} digit in 2^{nd} number to get intermediate results. That is Multiply 400 with 7. Write the result 2800 at the end leaving 1 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}400\\\underline{\times\phantom{999}78}\\\phantom{\times9}3200\\\underline{\phantom{\times}2800\phantom{9}}\\\end{array}$$

Now add the intermediate results to get final answer.

$$\begin{array}{c}\phantom{\times99}400\\\underline{\times\phantom{999}78}\\\phantom{\times9}3200\\\underline{\phantom{\times}2800\phantom{9}}\\\phantom{\times}31200\end{array}$$

Factor

$$2^{5}\times 3\times 5^{2}\times 13$$