Solve 0.8div(0.25*10^-3*1.6*10^-19)

$$0.8 \div (0.25 \times { 10 }^{ -3 } \times 1.6 \times { 10 }^{ -19 } )$$

Evaluate

$$20000000000000000000000$$

Solution Steps

To multiply powers of the same base, add their exponents. Add -3 and -19 to get -22.

$$\frac{0.8}{0.25\times 10^{-22}\times 1.6}$$

Calculate 10 to the power of -22 and get \frac{1}{10000000000000000000000}.

$$\frac{0.8}{0.25\times \frac{1}{10000000000000000000000}\times 1.6}$$

Multiply 0.25 and \frac{1}{10000000000000000000000} to get \frac{1}{40000000000000000000000}.

$$\frac{0.8}{\frac{1}{40000000000000000000000}\times 1.6}$$

Multiply \frac{1}{40000000000000000000000} and 1.6 to get \frac{1}{25000000000000000000000}.

$$\frac{0.8}{\frac{1}{25000000000000000000000}}$$

Divide 0.8 by \frac{1}{25000000000000000000000} by multiplying 0.8 by the reciprocal of \frac{1}{25000000000000000000000}.

$$0.8\times 25000000000000000000000$$

Multiply 0.8 and 25000000000000000000000 to get 20000000000000000000000.

$$20000000000000000000000$$

Factor

$$2^{23}\times 5^{22}$$