Project Euler

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.

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