Q: How is the number 39,916,596 written in Scientific Notation?
A: 3.9916596 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 39,916,596 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: | 3 | . | 9 | 9 | 1 | 6 | 5 | 9 | 6 |
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 = 3.9916596
b = 7
Now the whole thing:
3.9916596 x 107
Check your work:
107 = 10,000,000 x 3.9916596 = 39,916,596
39,916,594 | 39,916,595 | 39,916,597 | 39,916,598 |
3.9916594 x 107 | 3.9916595 x 107 | 3.9916597 x 107 | 3.9916598 x 107 |