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

$\blacksquare$