Find the LCM of the following numbers.
$$15$$ and $$4$$
Observe a common properly in the obtained LCMs. Is LCM the product of two numbers?
LCM$$=2\times 2\times 3\times 5=60$$.
Yes, it can be observed that in each case, the LCM of the given numbers is the product of these numbers. When two numbers are co-prime, their LCM is the product of those numbers. Also, in this case, LCM is a multiple of $$3$$.
$$2$$ $$|\underline{15, 4}$$
$$2$$ $$|\underline{15, 2}$$
$$3$$ $$|\underline{15, 1}$$
$$5$$ $$|\underline{5, 1}$$
$$1, 1$$