The answer depends on how the cells within each columns are numbered.
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There is only one even prime number. A prime number is any number that only has only one and itself as factors. By definition even numbers have a factor of two. Therefore the only even number that is prime is the number 2.
31 is a prime number. Its only prime factor is 31.
Since a prime number has only two positive integer factors, itself and 1, the only prime number with 2 as a factor is the number 2 itself.
Only 1 rectangle can be built with a Prime number of square tiles.
Prime numbers only have two factors, one and the number itself.