Home > Prealgebra > Least Common Multiple

What is the LCM of 18 and 24?

Answer 1

Benjamin Altschul

Least Common Multiple is #72#.

Multiples of #18# are #{18,36,54,color(red)72,90,108,126,color(red)144,162,...}#

Multiples of #24# are #{24,48,color(red)72,96,120,color(red)144,168,...}#

Hence, common multiples are #{72,144,...........}#

and Least Common Multiple is #72#.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Noah Archer

#LCM=72#

Write each number as the product of its prime factors:

The LCM must contain all the factors of each number, but without any duplicates.

#" "18 = 2color(white)(xxxx.x)xx3xx3# #" "24 = ul(2xx2xx2xx3)# #LCM = 2xx2xx2xx3xx3 = 72#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 3

Nova Allen

The least common multiple (LCM) of 18 and 24 is 72.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.