Solve 150*21

$$150 \times 21$$

Evaluate

$$3150$$

Steps For Long Multiplication

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

$$\begin{array}{c}\phantom{\times9}150\\\underline{\times\phantom{99}21}\\\end{array}$$

Now multiply the first number with the 1^{st} digit in 2^{nd} number to get intermediate results. That is Multiply 150 with 1. Write the result 150 at the end leaving 0 spaces to the right like this.

$$\begin{array}{c}\phantom{\times9}150\\\underline{\times\phantom{99}21}\\\phantom{\times9}150\\\end{array}$$

Now multiply the first number with the 2^{nd} digit in 2^{nd} number to get intermediate results. That is Multiply 150 with 2. Write the result 300 at the end leaving 1 spaces to the right like this.

$$\begin{array}{c}\phantom{\times9}150\\\underline{\times\phantom{99}21}\\\phantom{\times9}150\\\underline{\phantom{\times}300\phantom{9}}\\\end{array}$$

Now add the intermediate results to get final answer.

$$\begin{array}{c}\phantom{\times9}150\\\underline{\times\phantom{99}21}\\\phantom{\times9}150\\\underline{\phantom{\times}300\phantom{9}}\\\phantom{\times}3150\end{array}$$

Factor

$$2\times 3^{2}\times 5^{2}\times 7$$