Is the positive integer x even?

1. (x – 1) is a prime number

2. (x^2 – 1) is a prime number

1. (x – 1) is a prime number

2. (x^2 – 1) is a prime number

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Is the positive integer x even?

1. (x – 1) is a prime number

2. (x^2 – 1) is a prime number

1. (x – 1) is a prime number

2. (x^2 – 1) is a prime number

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