Abstract:Abstract. We show that there are only finitely many Diophantine quadruples, that is, sets of four positive integers {a 1 , a 2 , a 3 , a 4 } such that a i a j + 1 is a square for all 1 ≤ i < j ≤ 4, consisting of Fibonacci numbers.
We show that there is no Diophantine quadruple, that is, a set of four positive integers {a 1 , a 2 , a 3 , a 4 } such that a i a j + 1 is a square for all 1 ≤ i < j ≤ 4, consisting of Fibonacci numbers.
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