The product of all pairs of prime numbers is always the least common multiple of the two prime numbers.
Select ALL pairs of numbers that have a least common multiple of 30
24 and 48
Two pairs of #'s with 10 as their least common multiple: 5x2 1x10
12 and 18.12,24,36,48,60.18,36,54,72,90.
The pairs that are relatively prime.
Pick pairs of prime numbers. Pick any pairs of prime numbers.
20 and 25
12 and 1818 and 36