6 and 12 have a least common multiple of 12
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