You need at least two numbers to find an LCM. It doesn't matter whether they are prime or composite.
Yes, and of the composite number. LCM stands for Least Common Multiple. It's a multiple that's common to both of them.
LCM of a prime number and a composite number is always equal to their product if the composite number is not a multiple of the prime number. Here, 41 is a prime number and 20 is a composite number. Therefore LCM(20,41) = 20 x 41 = 820
LCM of a prime number and a composite number is equal to their product if the composite number is not a multiple of the prime number. Here, 14 is not a multiple of 23. So, LCM of 14 & 23 = 14x23 = 322
They are 4 and 9
LCM of 27 & 5 = 27 x 5 = 135. LCM of a prime number and a composite number is equal to their product if the composite number is not a multiple of the prime number.
Any prime number with its multiple.
To find a composite number, check if the number can be divided by 2,3,4,5, ect. If it can, it`s composite. If not, it`s prime.
Factor it. Once you find a third factor, it's composite.
Another number is needed to find LCM
LCM of a prime number and a composite number is equal to their product if the latter is not divisible by the former. 5 is a prime number and 49 is a composite number. 49 is not divisible by 5. So, LCM(5,49) = 5 x 49 = 245. Actually the reason behind this is that both(5 and 49) do not share any common factors except 1, so the LCM is equal to the product.
The LCM of this number is itself. To find the LCM requires two or more numbers.
it was albert einstien