2.1 = 2.1 E^0
E means 'x 10' and 10^0 equals 1
Therefore 2.1E^0 = 2.1
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1,320,000,000,000,000,000,000 in Scientific Notation = 1.32 x 1021 or 1.32e+21
21 million written in scientific notation is 2.1 x 10^6.
4x10^21
It is 8.9*10^-5 in scientific notation
It is "(scientific notation)".