Q: How is the number 778,135,143 written in Scientific Notation?

 A: 7.78135143 x 108

Why is 778,135,143 written as 7.78135143 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 778,135,143 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: 778,135,143
  • New Number: 7.78135143

Step 2

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

New Number: 7.78135143
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 = 7.78135143

b = 8

Now the whole thing:

7.78135143 x 108

Step 4

Check your work:

108 = 100,000,000 x 7.78135143 = 778,135,143


More Scientific Notation Examples

778,135,141778,135,142778,135,144778,135,145
7.78135141 x 1087.78135142 x 1087.78135144 x 1087.78135145 x 108

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