Question 1033751
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The FIbonacci numbers f_n are defined by the equations f_1 = 1, f_2 = 1, 
f_(n+1) = f_n + f_(n−1) (n ≥ 2).
Find gcd(f_10,7!)
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<pre>
I made calculations and got {{{f[10]}}} = 55.


Hence,  gcd(f_10,7!) = 5.
</pre>

When I completed it, I looked into Wikipedia (<A HREF=https://en.wikipedia.org/wiki/Fibonacci_number>this article)</A>.


It confirms that {{{f[10]}}} = 55.


So you can replace calculations by looking in Wikipedia, too.