Question
The product of two numbers is 180. The LCM of the two numbers is 60. What is the GCF of the two numbers? How do you know?
Answers
Reiny
nice question
the possible 2 numbers were
1 180
2 90
3 60
4 45
5 36
6 30
9 20
12 15
of those only the 3 60 pair has a LCM of 60
the GCF of the pair is 3
the possible 2 numbers were
1 180
2 90
3 60
4 45
5 36
6 30
9 20
12 15
of those only the 3 60 pair has a LCM of 60
the GCF of the pair is 3
Akshaya
The LCM of two numbers is 60. If the product of the two numbers is 180, find their HCF
Person
We know that,
LCM(a,b) X HCF(a,b) = Product of a and b
Therefore, 60 X HCF(a,b) = 180
= HCF(a,b) = 3
Therefore HCF of the two numbers is 3
Hope it helped =)
LCM(a,b) X HCF(a,b) = Product of a and b
Therefore, 60 X HCF(a,b) = 180
= HCF(a,b) = 3
Therefore HCF of the two numbers is 3
Hope it helped =)