Answer:
1
Explanation:
The factors of 87 are 87, 29, 3, 1.
The factors of 47 are 47, 1.
The common factors of 87 and 47 are 1, intersecting the two sets above.
In the intersection factors of 87 ∩ factors of 47 the greatest element is (1).
5.2m questions
6.7m answers