//Chapter 04:Number Theory and Cryptography clc; clear all; n1=input("Number 1:") n2=input("Number 2:") a=n1 b=n2 while n1 ~=n2 if n1>n2 then n1=n1-n2 else n2=n2-n1 end end mprintf("GCD(%d,%d) is:%d",a,b,n1)