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Prime Prime

How many natural numbers are there such that x^{4}+4 is a prime number?????

Note by Ashutosh Kaul
2 years, 9 months ago

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See this problem, which has 24 solutions.

Calvin Lin Staff - 2 years, 9 months ago

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thank u, Sir

Ashutosh Kaul - 2 years, 8 months ago

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