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Let n be a positive integer.Prove that the given expression

$${ 3 }^{ { 3 }^{ n } }({ 3 }^{ { 3 }^{ n } }+1)+{ 3 }^{ { 3 }^{ n+1 } }-1\quad$$ is not a prime.

Note by Bala Vidyadharan
1 year, 5 months ago

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