780,000 as a scientific notation

7.8 times 10^5

Step 1

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

Original Number: 780,000
New Number: 7.80000
Step 2

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

New Number:7.80000
Decimal Count: 12345
There are 5 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 = 7.8 (Please notice any zeroes on the end have been removed)

b = 5

Now the whole thing:

7.8 x 10^5

Step 4

Check your work:

10^5 = 100,000 x 7.8 = 780,000

780,000 (seven hundred eighty thousand) is an even six-digits composite number following 779999 and preceding 780001. In scientific notation, it is written as 7.8 × 105.

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