Table of Contents
Welcome to 2 to the 1st power, our post about the mathematical operation exponentiation of 2 to the power of 1.
If you have been looking for 2 to the first power, or if you have been wondering about 2 exponent 1, then you also have come to the right place. 🙂
The number 2 is called the base, and the number 1 is called the exponent. In this post we are going to answer the question what is 2 to the 1st power.
Keep reading to learn everything about two to the first power.
What is 2 to the 1st Power?
2 to the 1st power is conventionally written as 21, with superscript for the exponent, but the notation using the caret symbol ^ can also be seen frequently: 2^1.
21 stands for the mathematical operation exponentiation of two by the power of one.
As the exponent is a positive integer, exponentiation means a repeated multiplication:
The exponent of the number 2, 1, also called index or power, denotes how many times to multiply the base (2).
Thus, we can answer what is 2 to the 1st power as
If you have come here in search of an exponentiation different to 2 to the first power, or if you like to experiment with bases and indices, then use our calculator above.
To stick with 2 to the power of 1 as an example, insert 2 for the base and enter 1 as the index, also known as exponent or power.
2 to the 1st power is an exponentiation which belongs to the category powers of 2.
Similar exponentiations on our site in this category include, but are not limited, to:
Ahead is more info related to 2 to the 1 power, along with instructions how to use the search form, located in the sidebar or at the bottom, to obtain a number like 2^1.
2 to the Power of 1
Reading all of the above, you already know most about 2 to the power of 1, except for its inverse which is discussed a bit further below in this section.
Using the aforementioned search form you can look up many numbers, including, for instance, 2 to the power 1, and you will be taken to a result page with relevant posts.
Now, we would like to show you what the inverse operation of 2 to the 1st power, (21)−1, is. The inverse is the 1st root of 21, and the math goes as follows:
Because the index of 1 is not a multiple of 2, which means odd, in contrast to even numbers, the operation produces only one value: (21)−1
Make sure to understand that exponentiation is not commutative, which means that 21 ≠ 12, and also note that (21)-1 ≠ 2-1, the inverse and reciprocal of 21, respectively.
You already know what 2 to the power of 1 equals, but you may also be interested in learning what 2 to the negative 1st power stands for.
Next is the summary of our content.
Two to the First Power
You have reached the concluding section of two to the first power = 21. Two to the first power is, for example, the same as 2 to the power 1 or 2 to the 1 power.
Exponentiations like 21 make it easier to write multiplications and to conduct math operations as numbers get either big or small, such as in case of decimal fractions with lots of trailing zeroes.
If you have been looking for 2 power 1, what is 2 to the 1 power, 2 exponent 1 or 1 power of 2, then it’s safe to assume that you have found your answer as well.
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If you like to learn more about exponentiation, the mathematical operation conducted in 21, then check out the articles which you can locate in the header menu of our site.
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