Find all such that is prime, where is a positive integer.
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Since N = n 2 − 2 2 0 1 4 × 2 0 1 4 n + 4 2 0 1 3 ( 2 0 1 4 2 − 1 ) = ( n − 2 2 0 1 3 × 2 0 1 4 ) 2 − 4 2 0 1 3 = ( n − 2 2 0 1 3 × 2 0 1 3 ) ( n − 2 2 0 1 3 × 2 0 1 5 ) the only way that N can be prime is if one of these factors is ± 1 , and hence n is one of 2 2 0 1 3 × 2 0 1 3 + 1 2 2 0 1 3 × 2 0 1 3 − 1 2 2 0 1 3 × 2 0 1 5 + 1 2 2 0 1 3 × 2 0 1 5 − 1 The corresponding value of N in each of these cases is 1 − 2 2 0 1 4 − 1 − 2 2 0 1 4 2 2 0 1 4 + 1 2 2 0 1 4 − 1 respectively. But 3 = 2 2 − 1 divides 2 2 0 1 4 − 1 , while 5 = 2 2 + 1 divides 2 2 0 1 4 + 1 . Thus no integer value of n exists that makes N prime.