The special factorial inequality
Number Theory
Level
3
Consider the inequality below,
\[x! + y! + z! > (x + y + z)!\]
For some ordered triplets \((x,y,z)\), the inequality holds. If \(x,y,z\) ranges all over integer values from \(0\) to \(10\) inclusive, find the numbers of ordered triples that satisfy the inequality.
Details and assumptions
The values of \(x,y,z\) are not necessarily distinct.
by
敬全 钟