Ononot — Evaluate \text{gcd}(Fn, F{n+1}) where Fn is the n-th Fibonac

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GCD & LCMmedium

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Evaluate $\text{gcd}(F_n, F_{n+1})$ where $F_n$ is the $n$ -th Fibonacci number ( $F_1=1, F_2=1, F_3=2, F_4=3, F_5=5, F_6=8, F_7=13$ ).