title: What is the first term in the Fibonacci sequence to contain 1000 digits? url: http://projecteuler.net/problem=25 desc: | The Fibonacci sequence is defined by the recurrence relation: Fn = Fn1 + Fn2, where F1 = 1 and F2 = 1. Hence the first 12 terms will be: F1 = 1 F2 = 1 F3 = 2 F4 = 3 F5 = 5 F6 = 8 F7 = 13 F8 = 21 F9 = 34 F10 = 55 F11 = 89 F12 = 144 The 12th term, F12, is the first term to contain three digits. What is the first term in the Fibonacci sequence to contain 1000 digits? solution: Bruteforce solutions: solve.php: desc: Basic Solution - needs BCMath language: php solve.rb: desc: Basic solution language: ruby