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Another tip when solving puzzles is that sometimes your puzzle results won't be in the standard HH MM.MMM format that is presented on the cache page. The most common alternate format is decimal degrees but there are even more formats out there. If you notice on the cache page, below the posted coordinates it shows UTM coordinates and a link that says 'Other Conversions'. When solving a puzzle if you get numbers that are fairly close to one of the listed coordinate conversions there's a good chance you're on the right track
For this puzzle you need to do some simple math which will give you the UTM coordinates to the cache
For the Easting, 2 * 2 * 2 * 3 * 5 * 6121
For the Northing, 723227 * 6
After doing the math you will want to convert these numbers to a format you can use with your gpsr.
You can check your answers for this puzzle on GeoChecker.com.