Fibonacci Numbers (Problem 1, Version 2)

Number Theory Level pending

Using Binet's formula, find the 50 50 th Fibonacci number .


The answer is 12586269025.

A Former Brilliant Member by A Former Brilliant Member

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1 solution

5 0 t h 50^{th} Fibonnaci number = 12586269025 = 12586269025

0 Helpful 0 Interesting 0 Brilliant 2 Confused

Since the problem is given by you, why not show the answer using Binet's formula?

Mahdi Raza - 11 months, 3 weeks ago

Where's the Binet formula?

Pi Han Goh - 11 months, 3 weeks ago

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I don't know how to handle Binet's formula - the last time I did it, well...

A Former Brilliant Member - 11 months, 3 weeks ago

I cut off 25 25 the last time I used Binet's formula.

A Former Brilliant Member - 11 months, 3 weeks ago

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