Find all possible quadruplets (a,b,c,d) of positive integers, that satisfy this equation:
a!-b!-c! = d2.
Prove that no further quadruplet satisfies the given conditions.
(In reply to
anonymo by Hedda Dunn)
Whay do you have to resort to an utter lack of minimal norm of decency like this despite rrpeated reminders!
For the last time, kndly desist from posting such irrelevant and idiotic comments in a Math/Logic website!!