What is the least common multiple of 8 14 21?

Answer 1

you would have to make a factor tree for 8, 14, and 21. 8 equals 2*2*2. 14 equals 7*2 and 21 equals 7*3. Then you have to see what is the lowest number that they have in common. 8,14,21 do not have a number in commone so there isn't a common multiple.

Answer 2

The least common multiple of 8 and 21 is 168.

Answer 3

Since 21 is a multiple of 7, it is automatically the LCM.

Answer 4

The lowest common multiple of 8 and 21 is 168.

Answer 5

LCM(7, 21) = 21.

Answer 6

168

Answer 7

It is: 21