You are at a restaurant eating lunch with a friend. After the meal, your friend realizes they left their wallet at home. Your friend gives you a piece of silver….

## Write a program that implements Euclid’s algorithm and uses it to determine the greatest common divisor of two integers entered by the user.

Euclid was a Greek mathematician who lived approximately 2,300 years ago. His algorithm for computing the greatest common divisor of two positive integers, a and b, is both efficient and recursive. It is outlined below:

If b is 0 then

Return a

Else

Set c equal to the remainder when a is divided by b

Return the greatest common divisor of b and c

Write a program that implements Euclid’s algorithm and uses it to determine the greatest common divisor of two integers entered by the user. Test your program with some very large integers. The result will be computed quickly, even for huge numbers consisting of hundreds of digits, because Euclid’s algorithm is extremely efficient.