Solve 128*1600

$$128 \times 1600$$

Evaluate

$$204800$$

Steps For Long Multiplication

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

$$\begin{array}{c}\phantom{\times999}128\\\underline{\times\phantom{99}1600}\\\end{array}$$

Now multiply the first number with the 1^{st} digit in 2^{nd} number to get intermediate results. That is Multiply 128 with 0. Write the result 0 at the end leaving 0 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}128\\\underline{\times\phantom{99}1600}\\\phantom{\times999999}0\\\end{array}$$

Now multiply the first number with the 2^{nd} digit in 2^{nd} number to get intermediate results. That is Multiply 128 with 0. Write the result 0 at the end leaving 1 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}128\\\underline{\times\phantom{99}1600}\\\phantom{\times999999}0\\\phantom{\times99999}0\phantom{9}\\\end{array}$$

Now multiply the first number with the 3^{rd} digit in 2^{nd} number to get intermediate results. That is Multiply 128 with 6. Write the result 768 at the end leaving 2 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}128\\\underline{\times\phantom{99}1600}\\\phantom{\times999999}0\\\phantom{\times99999}0\phantom{9}\\\phantom{\times9}768\phantom{99}\\\end{array}$$

Now multiply the first number with the 4^{th} digit in 2^{nd} number to get intermediate results. That is Multiply 128 with 1. Write the result 128 at the end leaving 3 spaces to the right like this.

$$\begin{array}{c}\phantom{\times999}128\\\underline{\times\phantom{99}1600}\\\phantom{\times999999}0\\\phantom{\times99999}0\phantom{9}\\\phantom{\times9}768\phantom{99}\\\underline{\phantom{\times}128\phantom{999}}\\\end{array}$$

Now add the intermediate results to get final answer.

$$\begin{array}{c}\phantom{\times999}128\\\underline{\times\phantom{99}1600}\\\phantom{\times999999}0\\\phantom{\times99999}0\phantom{9}\\\phantom{\times9}768\phantom{99}\\\underline{\phantom{\times}128\phantom{999}}\\\phantom{\times}204800\end{array}$$

Factor

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