Q: How is the number 64,635,677 written in Scientific Notation?
A: 6.4635677 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 64,635,677 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: | 6 | . | 4 | 6 | 3 | 5 | 6 | 7 | 7 |
| 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 = 6.4635677
b = 7
Now the whole thing:
6.4635677 x 107
Check your work:
107 = 10,000,000 x 6.4635677 = 64,635,677
| 64,635,675 | 64,635,676 | 64,635,678 | 64,635,679 |
| 6.4635675 x 107 | 6.4635676 x 107 | 6.4635678 x 107 | 6.4635679 x 107 |