//localhost:1313/tags/math-definitions/ Recent content in Math Definitions on Zymacs Hugo en-us Wed, 17 Jun 2026 15:09:50 +0300 //localhost:1313/let-me-explain/what_a_factorial_is/ Wed, 17 Jun 2026 15:09:50 +0300 //localhost:1313/let-me-explain/what_a_factorial_is/ <p> You have 3 seats. Seat A, B and C. You need to find out how many ways you can arrange sitting order for your friends friend 1 through 3 given seats A, B and C. Let&#39;s say you choose a seat for a friend at a time. And you follow the order 1 through 3. Friend 1 has 3 seat choices. After you choose one of the 3, 2 are left. So friend 2 has 2 choices. Lastly, friend 3 has 1 choice.</p>