L.C.M.

What is the L.C.M. of 12 and 18?

• 12

• 18

• 36

• 48

Some of the multiples of 3 are...

• 6, 8, 10, 12

• 5, 6, 7, 8

• 12, 16, 20, 24

• 9, 12, 15, 18

The Prime Factors of 12 are

• 3 and 4

• 2 and 6

• 2, 2 and 3

• 1 and 12

The LCM of 2 and 7 are

• 14

• 7

• 2

• nothing

What is the LCM of 2, 3 and 4

• 8

• 12

• 16

• 24

The LCM of 2, 3 and 5 is

• 15

• 20

• 25

• 30

John said the LCM of 4 and 6 is 24. Is he correct?

( Answer YES or NO)

Tom's friend said the LCM for 3 and 7 is 21. Is he correct?

(Answer YES or NO)

Which method do you use to find LCM?

(a) Listing of Multiples or

(b) Dividing by Prime Factors

Are you having problems finding LCM of numbers?

Please be honest.

• Yes, all the time

• NO

• Sometimes

• I need extra help