LCM (Lowest Common Multiple) - I NEED MATH HELP!!
@working4theweekend (2403)
United States
January 15, 2007 4:02pm CST
Okay, so this question says:
Find the LCM of 6, 15, and 35.
I have got:
6 = 6, 12, 18, 24, 30, 36, 42, 48, 54...
15 = 15, 30, 45, 60, 75, 90, 105, 120...
35 = 35, 70, 105, 140, 175, 210, 245...
I am going to be here ALL day answering this question. Does anyone know an easier way, or a trick, to doing LCM problems?
If you do know, I'd be greatly appreciative to learn how (I'll give you best response if you can explain it so I understand it).
Thanks.
1 response
@loved_0506 (84)
• United States
15 Jan 07
LCM is a number that all 3 of the ones you listed can be evenly divided into. 210 is the answer...... 210/6=35, 210/15=14 and finally 210/35=6 i think this is correct .
@working4theweekend (2403)
• United States
15 Jan 07
Thanks - I posted this on Duno and they helped me figure out how to do it by using the PF (prime factorization) of each #. Thanks!:)
