Question

Find the LCM for the given numbers by an appropriate method. 135, 56, and 150.

Which method is the most appropriate?

Answer 1

135 56 150
divide by 5 27 56 30
divide by 3 9 56 10
divide by 2 9 28 5

so the LCM is 5 x 3 x 2 x 9 x 28 x 5

= 37800

Answer 2

Where did you get the numbers to divide by from?

Answer 3

you gotto look at he numbers at hand

if it ends in a 5 or 0 then it can be divided by 5,

if it ends in a multiple of 2 , then number is divisible by 2

if the digits added up are divisible by 3 then number is divisible by 3

that's how you choose, you first try to see if there is any number that can be a factor for all the numbers , if not then try 2,3,5 etc you gotto know the tables

Answer 4

40000