Question 898372
(2!)^2 ---> no zeros
(4!)^4 ---> no zeros


(6!)^(6!) = 6!^(720) 
6/5 = 1 (nearest integer)


1 * 720 = 720 zeros


(8!)^(8!) = 8!^(40320)
8/5 = 1 (nearest integer)


1 * 40320 = 40320 zeros


(10!)^(10!)
10/5 = 2


2 * 10! zeros


Total: 2 * 10! + 8! + 6! = 7,297,944 zeros