Factorial/Examples/18

Example of Factorial

 * $18! = 6 \, 402 \, 373 \, 705 \, 728 \, 000$

Proof
From $17$ Factorial:
 * $17! = 355 \, 687 \, 428 \, 096 \, 000$

Then: 355 687 428 096 000 x                 18 - 2 845 499 424 768 000 3 556 874 280 960 000 - 6 402 373 705 728 000