(32^32^32)%7 can reduced to:

please can you explain this
(32^32^32)%7 can reduced to:

@be10046.19 see this
http://www.studyboard.com/question/5699d1e16d1d69a8515f4db4/what+is+the+remainder+when+32^32^32+is+divided+by+7