Yes. Consider 30 and 42.
42
21,2
7,3,2
30
15,2
5,3,2
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM
To find the GCF and the LCM you have to first at least try to use prime factorization. So use factor trees. Or for the LCM find th least common multiples of the number.
The LCM is 12.
Since 4 is a factor of 600, it is automatically the LCM of this problem.
You need at least two numbers to find an LCM. If that's 30 and 40, the LCM is 120.
The LCM is 144.
The product of the GCF and the LCM of two numbers is equal to the product of the original two numbers. Multiply the GCF and the LCM. The original two numbers will be another factor pair of that total. Find the factor pair that has that GCF and LCM.
Find out about factors and factor trees.
Find the GCF when you want to simplify a fraction. Find an LCM when you want to add and subtract fractions.
Since 72 is a multiple of 36, it is automatically the LCM.
16080,240,2,220,2,2,2102,2,2,25,2,2,2,2,2You need another number to compare this one with to find a GCF or an LCM.
You need at least two factor trees to find a GCF.
The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.