The LCM of 7 and 20 is 140
140
the first three common multiples of 7, 20, and 35 are 140, 280, and 420
140,280,420
Any multiple of 1260.
They are: 140, 280 and 420
140, 280, 420 and so on.
140, 280, 420
140, 280, 420
Any multiples of 20.
Only one can be least common; that's 140. Other common multiples include 280, 420, 560 and 700.
140, 280, 420, 560, 700
Since 14 is a multiple of 7, all of its multiples are common.