p025.mat.txt

(* 
 * Solution to Project Euler problem 25
 * By Nayuki Minase
 * 
 * http://nayuki.eigenstate.org/page/project-euler-solutions
 * https://github.com/nayuki/Project-Euler-solutions
 *)


(* Use this in Wolfram Mathematica *)

i = 0;
While[Fibonacci[i] < 10^999, i++]
i