for numbers greater than or equal to 14! , we have them divisible by 14.
also 7!, 8!, .... ,13! are divisible by both 2 and 7 hence divisible by 14.
so we just need to find the remainder when
1! + 2! + 3! + 4! + 5! + 6! is divided by 14.
1 + 2 + 6 + 24 + 120 + 720 = 873.
and 873-5 is divisible y 14.
answer is 5...