Q: How is the number 54,452,974 written in Scientific Notation?
A: 5.4452974 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 54,452,974 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: | 5 | . | 4 | 4 | 5 | 2 | 9 | 7 | 4 |
| 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 = 5.4452974
b = 7
Now the whole thing:
5.4452974 x 107
Check your work:
107 = 10,000,000 x 5.4452974 = 54,452,974
| 54,452,972 | 54,452,973 | 54,452,975 | 54,452,976 |
| 5.4452972 x 107 | 5.4452973 x 107 | 5.4452975 x 107 | 5.4452976 x 107 |