## Even Fibonacci numbers: Python Code #2

This blog post discusses Project Euler problem 2:

**By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.**

Feel free to try the code below, by inputting any number:

## Largest prime factor

**What is the largest prime factor of the number 600851475143 ?**

## 10001st prime

**What is the 10 001st prime number?**

## Sum square difference

**Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.**

## Power digit sum

**What is the sum of the digits of the number 2^ ^{1000}?**

## 1000-digit Fibonacci

**What is the index of the first term in the Fibonacci sequence to contain 1000 digits?**

## Largest product in a series

**Find the thirteen adjacent digits in the 1000-digit number that have the greatest product. What is the value of this product?**

## Special Pythagorean triplet

**There exists exactly one Pythagorean triplet for which a + b + c = 1000.**

**Find the product**

`abc`.