21 to the Power of 3 = 21 3 = 9261
Welcome to our exponent calculator! We're exploring the concept of "21 to the power of 3". Let's break down what this means and how to calculate it.
What are Exponents?
An exponent is a mathematical operation where we multiply a number (called the base) by itself a certain number of times (indicated by the power or exponent). In our case, 21 is the base, and 3 is the exponent.
Calculation
To calculate 21 to the power of 3, we multiply 21 by itself 3 times. Here's the step-by-step process:
| Step | Calculation | Result |
|---|---|---|
| 1 | 21 | 21 |
| 2 | 21 × 21 | 441 |
| 3 | 21 × 21 × 21 | 9261 |
Solution: 21 to the power of 3 is equal to 9261.
How to write 21 to the power of 3 ?
Step 1: Understand the Concept
"21 to the power of 3" means we're multiplying 21 by itself 3 times. Let's break this down:
Step 2: Learn the Notation
In mathematics, we have a special way to write this more concisely. We use superscript notation:
Here, 21 is called the "base", and 3 is called the "exponent" or "power".
Step 3: Understand Alternative Notations
Sometimes, especially when typing or in programming, you might see it written as:
This means the same thing as 213.
Step 4: Calculate the Result
If we actually compute this:
Practice
Try writing these on your own:
- 20 to the power of 2
- 22 to the power of 4
- 3 to the power of 21
Interactive Power Calculator
Similar Calculations:
| Number | Power | Answer |
|---|---|---|
| 22 | 3 | 223 = 10648 |
| 23 | 3 | 233 = 12167 |
| 24 | 3 | 243 = 13824 |
Related Mathematical Operations
Square Root
The square root is the inverse operation of squaring a number. For our example:
v13824 ≈ 117.5755
This is approximate because 21^3 isn't a perfect square.
Logarithm
Logarithms are the inverse of exponential functions. The logarithm of 13824 with base 21 should equal 3:
log21(13824) = 3
Exponent Properties
1. Multiplying exponents with the same base: 21a * 21b = 21(a+b)
Example: 212 * 213 = 215 = 4084101
2. Dividing exponents with the same base: 21a / 21b = 21(a-b)
Example: 215 / 212 = 213 = 9261