The factorial of 9, denoted as 9!, is the product of all positive integers from 1 to 9. To calculate it, you would multiply 9 by every whole number less than it down to 1. Here’s the breakdown:
9! = 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1
Now, let’s do the math step-by-step:
- 9 × 8 = 72
- 72 × 7 = 504
- 504 × 6 = 3024
- 3024 × 5 = 15120
- 15120 × 4 = 60480
- 60480 × 3 = 181440
- 181440 × 2 = 362880
- 362880 × 1 = 362880
Thus, the factorial of 9 is 362880.