Inspired by Calvin LIn and Chung Kevin

Logic Level 5

Use 16 distinct positive integers to fill up the grid, such that the integers in any two connected squares have a greatest common divisor that is greater than 1.

What is the smallest possible value of the largest positive integer used?


Inspiration.

Here is the 5 by 5 version, if you're up for it.

×

Problem Loading...

Note Loading...

Set Loading...