Row 23
  • If the consecutive odd counting numbers are arranged as shown, what will be the middle (center) number in the 23rd row?

                    1                   ROW 1
                3       5               ROW 2
            7       9       11           ROW 3
        13       15       17       19       ROW 4
    21       23       25       27       29   ROW 5

Answer:    
  Please enter a numerical answer
(ex. 1000 or 2.033) and click GO.		    

Contest problems and answers provided by:

David Rock
rock_david@colstate.edu
Columbus State University

Doug Brumbaugh
brumbad@pegasus.cc.ucf.edu
University of Central Florida