- #1
xsm113r
- 4
- 0
Find all solutions in positive integers a; b; c to the equation
a!b! = a! + b! + c!
I have rearranged and got (a!-1)(b!-1) = c!+1
And the only solutions I can find are a=3 b=3 c=4 but I can't be sure that they are the only ones. How would I go about finding other solutions?
I have tried b=1 to 4 but after that the numbers start getting a bit big
a!b! = a! + b! + c!
I have rearranged and got (a!-1)(b!-1) = c!+1
And the only solutions I can find are a=3 b=3 c=4 but I can't be sure that they are the only ones. How would I go about finding other solutions?
I have tried b=1 to 4 but after that the numbers start getting a bit big