Number of digits in $2^{10} \cdot 5^{8}$ is

Question

Aicharya · Accepted Answer

$2^{10} \cdot 5^{8} = 2^{2} \cdot (2^{8} \cdot 5^{8}) = 4 \cdot 10^{8} = 400{,}000{,}000$, which has 9 digits.

Solution