How is a number converted to scientific notation?

How do you convert a number to scientific notation? For example, what is 507 in scientific notation?
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1. Bump the decimal point over so that it's just to the right of the first nonzero digit.
2. If you bump it to the left, the power of ten is equal to the number of places the decimal point moves.
3. If you bump it to the right, the power of ten is equal minus the number of places the decimal point moves.

number	scientific notation
507	5.07 × 102
186282	1.86282 × 105
602000000000000000000000	6.02 × 1023
0.00507	5.07 × 10-3
0.000001	1 × 10-6
0.00000000000000000000000167	1.67 × 10-24

Author: Fred Senese senese@antoine.frostburg.edu

Copyright © 1997-2010 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 02/23/18.URL: http://antoine.frostburg.edu/chem/senese/101/measurement/faq/exponential-notation.shtml