For any positive numberĀ \(b\) but \(b \ne 1\), $${\log _b}b = 1$$ Example: $${\log _4}4 = 1$$ For any positive numberĀ \(b\) but \(b \ne 1\), $${\log _b}1 = 0$$ Example: $${\log _8}1 = 0$$ Math Topics Laws of Logarithms