99 and 101 have an LCM of 9,999.
Twelve factors.
20 and 30
Their product.
The LCM is their product. The LCM of 4 and 9 is 36. The LCM of 8 and 11 is 88.
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.
If the two numbers have no common factors other than 1, the LCM will be their product. If there are other common factors, the LCM will be less.
Since the two numbers have no factors in common, the LCM is -4x11=-44
The LCM is their product. The LCM of 27 and 35 is 945.
9999 = 3^2 x 11 x 101
If the GCF of a given pair of numbers is 1, the LCM will be equal to their product. If the GCF is greater than 1, the LCM will be less than their product. Or, stated another way, if the two numbers have no common prime factors, their LCM will be their product.
If two numbers have no common factor greater then one, then their LCM is the two numbers multiplied together. Example: 9 and 14 have no common factors. Their LCM is 9 x 14, which is 126.
LCMs and factors are two different things. You need at least two numbers to find an LCM. If that's 6 and 15, the LCM is 30. The factors of 6 are: 1, 2, 3, 6 The factors of 15 are: 1, 3, 5, 15 The factors of 615 are: 1, 3, 5, 15, 41, 123, 205, 615