The expression \(4^3\) means \(4\) raised to the power of \(3\), which is equal to:
\[ 4^3 = 4 \times 4 \times 4 \]
Calculating this gives:
\[ 4 \times 4 = 16 \] \[ 16 \times 4 = 64 \]
Therefore, \(4^3\) is equal to \(64\).
An equivalent expression is simply \(64\). Additionally, \(4^3\) can also be expressed as \( (2^2)^3 \) due to \(4\) being \(2^2\), which simplifies to \(2^{2 \times 3} = 2^6\). Thus, both \(64\) and \(2^6\) are equivalent to \(4^3\).