Math Problem Solver

$${2}^{6.643} = 64 \cdot 2^{\frac{643}{1000}} \approx 99.94067105374606165006759954990391$$

$$\begin{aligned}{2}^{6.643}&=2^{6 + \frac{643}{1000}}\\&=2^{\frac{6643}{1000}}\\&=64 \cdot 2^{\frac{643}{1000}}\end{aligned}$$