three pairs of numbers that their LCM is 60:
[15,4]=[3,20]=[5,12]=60
three pairs of numbers that their HCF is 60:
(60,120)=(60,180)=(120,180)=60
three pairs of numbers that their LCM is 60:
[15,4]=[3,20]=[5,12]=60
three pairs of numbers that their HCF is 60:
(60,120)=(60,180)=(120,180)=60