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n^4 + 2n^3 + 2n^2 + 2n + 1 is prime 2018 Malaysia OMK Intermediate A6

Source:

September 19, 2021
number theoryprime

Problem Statement

How many integers nn are there such that n4+2n3+2n2+2n+1n^4 + 2n^3 + 2n^2 + 2n + 1 is a prime number?