Q: How is the number 717,774,412 written in Scientific Notation?
A: 7.17774412 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 717,774,412 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: | 7 | . | 1 | 7 | 7 | 7 | 4 | 4 | 1 | 2 |
| 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 = 7.17774412
b = 8
Now the whole thing:
7.17774412 x 108
Check your work:
108 = 100,000,000 x 7.17774412 = 717,774,412
| 717,774,410 | 717,774,411 | 717,774,413 | 717,774,414 |
| 7.1777441 x 108 | 7.17774411 x 108 | 7.17774413 x 108 | 7.17774414 x 108 |