Q: How is the number 6,991,129 written in Scientific Notation?

 A: 6.991129 x 106

Why is 6,991,129 written as 6.991129 x 106 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 6,991,129 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: 6,991,129
  • New Number: 6.991129

Step 2

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

New Number: 6.991129
Decimal Count: 123456

There are 6 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 = 6.991129

b = 6

Now the whole thing:

6.991129 x 106

Step 4

Check your work:

106 = 1,000,000 x 6.991129 = 6,991,129


More Scientific Notation Examples

6,991,1276,991,1286,991,1306,991,131
6.991127 x 1066.991128 x 1066.99113 x 1066.991131 x 106

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