wat is the lcm of 6 15 and 30?

30

M6 = { 6 12 18 24 30--------- }
M15 = {15 30 45 60 75 ---------- }
M30 = {30 60 90 120 150-------- }

LCM = 30

6 = 2 x 3
15 = 3 x 5
30 = 2 x 3 x 5
-------------------
The LCM of 6,15,30 is:
2 x 3 x 5
= 30

30

LCM- Least common multiple

Go through each number's multiples until you get one that matches:

6- 6, 12, ....., 30, ...
15- 15, 30, ...
30- 30, ...

As you see above, 30 is the Least Common Multiple of the three numbers.

30

the least is a 30 because 15 x2 is 30 and also 30x 1 is 30 and 6 can not go into 30 unless timed by 5

30

30
(6 * 5) = 30
(15 * 2) = 30
(30 * 1) = 30

The LCM is 6, 15 and 30 is 30.

LCM means Least Common Multiple, so go through the list of multiples of each number and find the first common numeral.

6, 12, 18, 24, 30, 36, ...
15, 30, 45, 60, ...
30, 60, 90, ...

30 is the first common number among all three.