721 in Scientific Notation

Welcome to 721 in scientific notation.

This is our comprehensive article about writing the number seven hundred twenty-one as a small number × 10^n. 🙂

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Simply the Best Scientific Notation ⇄ Numbers Converter! Please ReTweet. Click To TweetIf you have been looking for 721 in exponential form or 721 as a power of 10, then you are right here, too.

In this post you can find everything about the standard index form of 721, including the normalized scientific notation and the number written in e-notation.

Check out our app, and then read on to learn everything about seven hundred twenty-one written compactly.

Note that you can also find the result of the number conversion in the output fields of our converter above.

Video: How Do You Write 721 in Scientific Notation?

Keep reading to learn everything about scientific number notation in depth.

What is 721 in Scientific Notation?

Let’s recall how to convert 721 as detailed on our home page.

When you split the number 721 into a coefficient and a power of 10 you do get 721 in exponential form, but there is an indefinite number of possibilities.

As you probably want 721 in normalized scientific notation, the coefficient or significand of 721 must be in the interval [1,10[.

In other words, the coefficient has to be equal to or greater than 1 (≥1), and less than 10 (<10).

In this post we mean 721 in the normalized version, unless stated otherwise.

Not a convention, but this reflects the use of the term in daily life.

Therefore:
721 = 7.21 × 10².
This can also be expressed as 7.21 × 10^2 , using the caret symbol, or as 7.21e+2, which is called 721 in e-notation, further discussed in the section ahead.

Now, please allow for a few words regarding our converter at the top of this page:

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Give it a try now, and note that in the appendix of this article you can find our chart with entries close to 721!

721 in Exponential Form

721 in exponential form is a^b, a is the base, and b is called the exponent, also known as index or power of the engineering notation of 721.

You may think of the scientific notation as a special example of exponential numbers a^b – invented to display repeated multiplication efficiently – where the coefficient (significand) is 1 and the base equals 10.

Therefore the exponent (index) b is what defines how many times 10 x.

The term a^b is called the exponential expression.

However, it’s important to understand that there is not a unique way to express 721 in such a way; in fact there are countless possibilities:

By definition of exponential form, not only the index and coefficient, but also the base can be varied.

In contrast to using scientific notation for 721, which has 10 as base.

While on the subject, here are some more numbers you might be interested in:

• 726 in scientific notation
• 727 in scientific notation
• 728 in scientific notation

In the following paragraph we elaborate on using scientific notation as a power of 10.

721 as a Power of 10

As outlined above, there is more than one way to write 721 as a power of 10.

Like any number written in scientific notation, 721 has a significand (sometimes called a mantissa or coefficient) of 7.21 multiplied by the power of ten 100 expressed by the base 10 and index 2:

721 = 7.21 x 100 = 7.21 × 10².

Writing a number as a power of 10 is a “shorthand” form to express a repeated multiplication, too.

By the way: There are two conventions for naming powers of ten, known as the long and the short scale.

In English, the short scale is used almost everywhere these days, including on this website.

En passant: Sites which are related to scientific notation, exponents or numbers can be found in the “recommended sites section” in our sidebar.

In the section ahead, we are going to shed a light on the frequently asked questions in the context.

You may be surprised to learn what other people like to know.

FAQs

Click on the question which is of interest to you to see the collapsible content answer.

What is 721 in scientific notation?

721 written in scientific notation is 7.21 × 10².

How do you write 721 as an exponent?

The exponent form of 721 is 7.21 × 10².

How do you read 7.21E+2 in scientific notation?

As the letter E is used to express “10 to the power of”, 7.21E+2 means “7.21 times 10 to the power of 2”.

What is the benefit of writing 721 in scientific notation?

It allows you to write 721 compactly, and you may also use it for the comparison of numbers without the need of counting zeros.

How do you write 721 in scientific notation?

Answer: You write it as 7.21 × 10² with superscript or 7.21 × 10^2 using a caret.

If anything remains unclear, or if something important is missing, then do not hesitate getting in touch with us: we will reply asap.

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Next is the summary of this post, along with some additional information in the context of the subject matter.

Summary

If you’re still here reading, you have made it almost through the end of our article about the notation in science.

In conclusion, 721 = 7.21 × 10².

“Standard index form”, “power of 10”, “e-notation” as well as “exponential form” mean exactly or nearly the same, just to name a few.

So, if you have found us searching for a synonym term such as notation form, then you have also learned all you wanted to know about it.

In this post we have also provided you with an app, our table in the appendix, and a frequently asked questions section to explain you all about the scientific notation of seven hundred twenty-one.

Instead of superscript, you may also come across the caret symbol: 7.21 × 10^2.

Note that you can locate many numbers including, but not limited to 721 using the search form in the sidebar and in the menu of this post.

More Information

More about the topic can be encountered on Scientific Notation; we explain, for instance, in which case to move the decimal separator n places to the right.

In addition, there we show you how to convert the scientific notation of a number to decimal places using notation examples, discuss positive and negative numbers, etc.

For questions and anything else you might have on seven hundred twenty-one in standard index form, fill in the comment form at the end of this article.

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Remember that on our homepage we elaborate on scientific notation exponents aka the 10th power:

A negative exponent (negative powers or negative integer) for small numbers, and a positive exponent (positive powers or positive integer) for large numbers.

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