The Sieve of Eratosthenes - a Simulation

Eratosthenes of Kyrene ca. 276-194 B.C.

The fields "upper limit" and "number of columns" (# columns) can be filled in freely and activated with the "Start" button.
The state of the procedure is displayed in a table (below). The display window should be sufficiently wide.

upper limit (fill in freely / default value =  200):    
# columns (fill in freely / default value =    18):