This cache is not at the posted coordinates
This is the second of a pair of puzzle caches. When you find Ho Ho Ho! - Part 1 GC7FY1Z, note the clue on the logsheet. The difficulty level here is for the need to solve and find Ho Ho Ho! - Part 1 first.
This puzzle is designed to be solved on site without any tools or internet connection, though a hand held calculator may come in handy.
You can validate your puzzle solution with certitude.
Congratulations to the FTS and FTF team of Blackavar1 and skwirlqueen!