Yes, there are fractional exponents, where the exponent is a fraction. For example, [katex] \\, 4^{\\frac{1}{2}}=2. [/katex] There are also negative exponents, where the exponent is a negative number. For example, [katex] \\, ​​3^{-2}=\\cfrac{1}{3^2}. [/katex] These are covered in later grades.