The LCM of 21 & 30 is... 210
210.(30 * 7 = 210)(21 * 10 = 210)
The Least Common Multiple (LCM) of 30, 21, and 7 is 210.
The LCM is: 420
Least Common Multiple (LCM) for 30 21 is 210.
210
the answer is: 210
210.
210
210
The Least Common Multiple (LCM) for 12 21 30 70 is 420.
If that's 15, 21 and 30, the LCM is 210.