How many ones are in 1

What kinds of numbers have an odd number of factors?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking