Q: How is the number 261,031,358 written in Scientific Notation?

 A: 2.61031358 x 108

Why is 261,031,358 written as 2.61031358 x 108 in scientific notation?

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 261,031,358 is written in scientific notation.

Step 1

To find a, take the number and move a decimal place to the right one position.

  • Original Number: 261,031,358
  • New Number: 2.61031358

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 2.61031358
Decimal Count: 12345678

There are 8 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 2.61031358

b = 8

Now the whole thing:

2.61031358 x 108

Step 4

Check your work:

108 = 100,000,000 x 2.61031358 = 261,031,358


More Scientific Notation Examples

261,031,356261,031,357261,031,359261,031,360
2.61031356 x 1082.61031357 x 1082.61031359 x 1082.6103136 x 108

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