TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: what is the greatest prime factor of 2 ^ 10 - 1 ?

SOLUTION: 3

PROBLEM: Problem: which number can we add to 425897 to get a number exactly divisible by 456 ?

SOLUTION: 7

PROBLEM: Problem: what number times ( 1 ⁄ 6 ) ^ 2 will give the value of 6 ^ 3 ?

SOLUTION:
777