Q: How is the number 201,794,726 written in Scientific Notation?
A: 2.01794726 x 108
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 201,794,726 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 | . | 0 | 1 | 7 | 9 | 4 | 7 | 2 | 6 |
Decimal Count: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
There are 8 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 = 2.01794726
b = 8
Now the whole thing:
2.01794726 x 108
Check your work:
108 = 100,000,000 x 2.01794726 = 201,794,726
201,794,724 | 201,794,725 | 201,794,727 | 201,794,728 |
2.01794724 x 108 | 2.01794725 x 108 | 2.01794727 x 108 | 2.01794728 x 108 |