Solve the Problem $n ^ { 2 } - 79 n + 1601$

question 109

Short Answer

Solve the problem.
-Escott used the formula $n ^ { 2 } - 79 n + 1601$ to generate prime numbers for whole numbers $n$ . The formula fails to produce a prime for $\mathrm { n } = 80$ .
Evaluate Escott's formula for $\mathrm { n } = 81$ and determine whether this is a prime number. If it is not a prime number, give its prime factors.

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