If highest power of 8 in N! is 19. Then find the highest power of 8 in (N+1)!.

(Q). If highest power of 8 in N! is 19. Then find the highest power of 8 in (N+1)!.
Solution:- 

Highest power of 8 in N! = 19
∴ highest power of 2 in N! = 57, 58 or 59
now we are to find such value of N
To find such N ⇒