7•7•7

The expression \(7 \cdot 7 \cdot 7\) is equal to \(343\). This is because:

\[ 7 \cdot 7 = 49 \] Then, multiplying \(49\) by \(7\):

\[ 49 \cdot 7 = 343 \]

So, \(7 \cdot 7 \cdot 7 = 343\).