M and N are two adjacent nonzero natural numbers whose greatest common factor is []

M and N are two adjacent nonzero natural numbers whose greatest common factor is []

Because m and N are two adjacent natural numbers, and (M and N are not zero), that is, m and N are coprime. When the two numbers are coprime, their greatest common factor is 1, and their least common multiple is the product of the two numbers. Then we can solve the problem
Because M. n is two adjacent natural numbers, and (m, n are not 0), that is, m and N are coprime, then:
The greatest common factor of M and N is 1