Calculate 7³: Finding the Cube of Seven

To solve the problem of finding $7^3$, follow these steps:

• Step 1: Understand that the power $7^3$ means 7 multiplied by itself three times.
• Step 2: First, compute $7 \times 7$. This equals 49.
• Step 3: Next, multiply the result by 7 again: $49 \times 7$.
• Step 4: Calculate $49 \times 7$, which equals 343.

Therefore, $7^3 = 343$.

With the possible choices given, the correct answer corresponds to choice $343$.