Question 1049660

How many common multiples of 14 and 21 are there between 200 and 400?
<pre>LCM of 14 and 21 is 42
There are 5 multiples of 42, between 200 and 400. They are: {{{highlight_green(matrix(5, 1, 210, 252, 294, 336, 378))}}}