Solve 2*1.6*10^-19*45/9*10^-31

$$\frac { 2 \times 1.6 \times 10 ^ { - 19 } \times 45 } { 9 \times 10 ^ { - 31 } }$$

Evaluate

$$16000000000000$$

Solution Steps

Cancel out 9 in both numerator and denominator.

$$\frac{1.6\times 2\times 5\times 10^{-19}}{10^{-31}}$$

To divide powers of the same base, subtract the denominator's exponent from the numerator's exponent.

$$1.6\times 2\times 5\times 10^{12}$$

Multiply 1.6 and 2 to get 3.2.

$$3.2\times 5\times 10^{12}$$

Multiply 3.2 and 5 to get 16.

$$16\times 10^{12}$$

Calculate 10 to the power of 12 and get 1000000000000.

$$16\times 1000000000000$$

Multiply 16 and 1000000000000 to get 16000000000000.

$$16000000000000$$

Factor

$$2^{16}\times 5^{12}$$