Cal11 calculator
Search calculator...

How Do You Put An Exponent on A Calculator

Reviewed by Calculator Editorial Team

Entering exponents on a calculator depends on the type of calculator you're using. Basic calculators typically require manual entry, while scientific calculators have dedicated exponent keys. This guide explains how to enter exponents on both types of calculators with clear examples.

Basic Calculators

Basic calculators don't have an exponent key, so you'll need to multiply the base by itself the number of times indicated by the exponent. For example, to calculate 2³ (2 raised to the power of 3), you would multiply 2 by itself three times: 2 × 2 × 2 = 8.

Tip: For larger exponents, consider using a scientific calculator or programming a calculator to perform repeated multiplication.

Step-by-Step Process

  1. Enter the base number (the number being raised to a power).
  2. Press the multiplication key (×).
  3. Enter the same base number again.
  4. Repeat steps 2 and 3 for each additional exponent level.
  5. Press the equals (=) key to get the result.

Scientific Calculators

Scientific calculators have a dedicated exponent key (often labeled as "xʸ" or "^") that simplifies exponent calculations. This key is typically located near the multiplication and division keys.

Formula: baseexponent = result

Step-by-Step Process

  1. Enter the base number.
  2. Press the exponent key (xʸ or ^).
  3. Enter the exponent value.
  4. Press the equals (=) key to get the result.

Some scientific calculators also have an "x²" key for squaring a number and an "x³" key for cubing a number, which can be quicker for common exponents.

Examples

Let's look at a few examples to illustrate how to enter exponents on different types of calculators.

Example 1: Basic Calculator

Calculate 3⁴ using a basic calculator:

  1. Enter 3.
  2. Press ×.
  3. Enter 3.
  4. Press ×.
  5. Enter 3.
  6. Press ×.
  7. Enter 3.
  8. Press =.

The result is 81.

Example 2: Scientific Calculator

Calculate 5² using a scientific calculator:

  1. Enter 5.
  2. Press xʸ or ^.
  3. Enter 2.
  4. Press =.

The result is 25.

Example 3: Using the x² Key

Calculate 4³ using a scientific calculator with an x³ key:

  1. Enter 4.
  2. Press x³.
  3. Press =.

The result is 64.

FAQ

Can I use a basic calculator to calculate exponents?

Yes, but you'll need to multiply the base by itself the number of times indicated by the exponent. For example, 2³ would require multiplying 2 by itself three times.

What is the difference between xʸ and ^ on a scientific calculator?

Both keys perform the same exponentiation function. The difference is just the symbol used on different calculator models.

Can I use exponents with negative numbers?

Yes, you can use exponents with negative numbers. For example, (-2)³ would be calculated as (-2) × (-2) × (-2) = -8.

What if I make a mistake while entering an exponent?

Most calculators have a clear (C) or all clear (AC) button to reset the calculation. Press this button to start over if you make a mistake.