What is the common multiple 4 6 8 10 12 14 16 18 20 22?

Answer 1

Since we are talking about common multiple of all these numbers so, we can just find LCM of all these numbers and write down all the multiples of the LCM which are the common multiples of the given numbers.

In order to find LCM of the given numbers we have to do a lot of calculation. So, finding the LCM requires a lot of work and therefore we have to to look for another method.

If we multiply all these numbers then the result is a common multiple.

So, answer is : 4 x 6 x 8 x 10 x ... x 22 = 40874803200

Also, if multiply the answer with any natural number we get a common multiple which means there exists infinite common multiples.