Least common multiple review

LCM stands for least common multiple. The least common multiple of two numbers is the smallest number that is a multiple of both of them.

One way to find the LCM of two (or more!) numbers is to list the multiples of each number until we find the smallest multiple they have in common.

$8$‍ ರ ಅಪವರ್ತ್ಯಗಳು: $8,16,24,32,40,48,56,64,72,80\text{…}$‍

$10$‍ರ ಅಪವರ್ತ್ಯಗಳು:$8,16,24,32,40,48,56,64,72,80\text{…}$‍

$40$‍ and $80$‍ are common multiples of $8$‍ and $10$‍. Which of these is the least?

$40$‍ is the smallest multiple that $8$‍ and $10$‍ have in common.

Multiples of $3$‍: $3,6,9,12,15,18,21,24\text{…}$‍

Multiples of $4$‍: $4,8,12,16,20,24,28\text{…}$‍

Multiples of $6$‍: $6,12,18,24,30,36\text{…}$‍

$12$‍ is the smallest multiple that $3,4,$‍ and $6$‍ have in common.

Want to try more problems like this? Check out this exercise.