A Highest Common Factor of a, b is defined as ___________
(a) It is the smallest integer divisible by both a and b
(b) It is the greatest integer divisor of both a and b
(c) It is the sum of the number a and b
(d) None of the mentioned
I had been asked this question by my college professor while I was bunking the class.
This intriguing question comes from Number Theory in section Number Theory and Cryptography of Discrete Mathematics