Square of 638

The square of a number is the product of the number by itself. The square of 638 is 638 × 638. The square of a number can end in any digit, but specific patterns can be observed for smaller numbers. We write it in math as 638², where 638 is the base and 2 is the exponent. The square of a positive and a negative number is always positive. For example, 5² = 25; (-5)² = 25.

The square of 638 is 638 × 638 = 407,044.

Square of 638 in exponential form: 638²

Square of 638 in arithmetic form: 638 × 638

The square of a number is obtained by multiplying the number by itself. Let's learn how to find the square of a number using common methods.

1. By Multiplication Method
2. Using a Formula
3. Using a Calculator

In this method, we multiply the number by itself to find the square. The product here is the square of the number. Let's find the square of 638.

Step 1: Identify the number. Here, the number is 638.

Step 2: Multiplying the number by itself, we get, 638 × 638 = 407,044.

The square of 638 is 407,044.

In this method, the formula, a² is used to find the square of the number, where 'a' is the number.

Step 1: Understanding the equation Square of a number = a²

a² = a × a

Step 2: Identifying the number and substituting the value in the equation.

Here, ‘a’ is 638 So: 638² = 638 × 638 = 407,044

Using a calculator to find the square of a number is the easiest method. Let's learn how to use a calculator to find the square of 638.

Step 1: Enter the number in the calculator Enter 638 in the calculator.

Step 2: Multiply the number by itself using the multiplication button (×) That is 638 × 638

Step 3: Press the equal to button to find the answer Here, the square of 638 is 407,044.

Tips and Tricks for the Square of 638

Tips and tricks make it easy for students to understand and learn the square of a number. To master the square of a number, these tips and tricks will help students.

• The square of an even number is always an even number. For example, 6² = 36.

• The square of an odd number is always an odd number. For example, 5² = 25.

• If the square root of a number is a fraction or a decimal, then the number is not a perfect square.

• The square root of a perfect square is always a whole number. For example, √144 = 12.

• Perfect square: A number that is the square of an integer. For example, 16 is a perfect square because it is 4².

• Prime number: A natural number greater than 1 that has no positive divisors other than 1 and itself.

• Exponential form: A way of expressing numbers as a base raised to a power, such as 638².

• Square root: The number that, when multiplied by itself, gives the original number. For example, the square root of 16 is 4.

• Multiplication: The mathematical operation of scaling one number by another, such as finding the square of a number by multiplying it by itself.