Q: How is the number 27,263,799 written in Scientific Notation?
A: 2.7263799 x 107
The purpose of scientific notation is for scientists to write very large, or very small, numbers with ease.
Calculating scientific notation for a positive integer is simple, as it always follows this notation:
a x 10b
Follow the steps below to see how 27,263,799 is written in scientific notation.
To find a, take the number and move a decimal place to the right one position.
Now, to find b, count how many places to the right of the decimal.
New Number: | 2 | . | 7 | 2 | 6 | 3 | 7 | 9 | 9 |
Decimal Count: | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
There are 7 places to the right of the decimal place.
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 2.7263799
b = 7
Now the whole thing:
2.7263799 x 107
Check your work:
107 = 10,000,000 x 2.7263799 = 27,263,799
27,263,797 | 27,263,798 | 27,263,800 | 27,263,801 |
2.7263797 x 107 | 2.7263798 x 107 | 2.72638 x 107 | 2.7263801 x 107 |