Evaluate
\frac{1}{8000000000000000000}=1.25 \cdot 10^{-19}
Factor
\frac{1}{2 ^ {21} \cdot 5 ^ {18}} = 1.2500000000000002 \times 10^{-19}
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\left(5\times \frac{1}{10000000}\right)^{3}
Calculate 10 to the power of -7 and get \frac{1}{10000000}.
\left(\frac{1}{2000000}\right)^{3}
Multiply 5 and \frac{1}{10000000} to get \frac{1}{2000000}.
\frac{1}{8000000000000000000}
Calculate \frac{1}{2000000} to the power of 3 and get \frac{1}{8000000000000000000}.
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