MathDB
A 113

Source:

May 25, 2007
number theoryrelatively primeDivisibility Theory

Problem Statement

Find all triples (l,m,n)(l, m, n) of distinct positive integers satisfying gcd(l,m)2=l+m,  gcd(m,n)2=m+n,  and    gcd(n,l)2=n+l.{\gcd(l, m)}^{2}= l+m, \;{\gcd(m, n)}^{2}= m+n, \; \text{and}\;\;{\gcd(n, l)}^{2}= n+l.