The Goldbach conjecture claims that even numbers greater than 2 can be expressed as the sum of two prime numbers. What about the other numbers, such as 1, 2, 3, and 11, which cannot?
Write a function that returns the nth number that cannot be expressed as the sum of two prime numbers.
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Last Solution submitted on Apr 23, 2026

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William George Berken Nikolaos Nikolaou David Hill

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