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Proof WritingHardContrapositive and Contradiction

Contrapositive and Contradiction · Hard problem

In Euclid’s argument, suppose the only primes were 2,3,5,7,11,132, 3, 5, 7, 11, 13. Then N=2⋅3⋅5⋅7⋅11⋅13+1=30031N = 2\cdot3\cdot5\cdot7\cdot11\cdot13 + 1 = 30031. NN is NOT prime. What is its smallest prime factor?