Solve the Multiplication Problem: 7 × 3 × 1 Step by Step

To solve the problem $7 \times 3 \times 1$, we will multiply the numbers step-by-step, using the associative property of multiplication.

• Step 1: Calculate the product of the first two numbers: $7 \times 3 = 21$.
• Step 2: Multiply the result by the third number: $21 \times 1 = 21$.

Since multiplying by 1 does not change the value of a number, the intermediate result 21 remains unchanged in the final step.

Thus, the solution to the problem is $21$.