LCM of 84 and 48??

One way as follows:

Multiples of 48:

48  96  144  192  240  288  336  384

Multiples of 84:

84  168  252  336

So 336 is the lowest common multiple (or least common multiple).

An alternative way is to start with the prime factors of each number:

Prime factors of 48:  2⁴, 3

Prime factors of 84:  2², 3, 7

Take the largest occurrence of each prime factor and multiply them together:  2⁴*3*7 =  336

Thank You that makes more sense!