Evaluate
\frac{21}{1000000}=0.000021
Factor
\frac{3 \cdot 7}{2 ^ {6} \cdot 5 ^ {6}} = 2.0999999999999996 \times 10^{-5}
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3\times 10^{-6}\times 7
To multiply powers of the same base, add their exponents. Add -2 and -4 to get -6.
3\times \frac{1}{1000000}\times 7
Calculate 10 to the power of -6 and get \frac{1}{1000000}.
\frac{3}{1000000}\times 7
Multiply 3 and \frac{1}{1000000} to get \frac{3}{1000000}.
\frac{21}{1000000}
Multiply \frac{3}{1000000} and 7 to get \frac{21}{1000000}.
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