Final answer:
The height of each column would be 1 meter.
Step-by-step explanation:
To make the columns of the same height using the least number of stones, we need to find the greatest common divisor of the edge lengths of the two types of stones. In this case, the edge lengths are 2 meters and 3 meters. The greatest common divisor of 2 and 3 is 1. Therefore, the height of each column would be 1 meter.
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