answersLogoWhite

0

The LCM of 12, 18, and 21 is 252

Factors of 12: 2^2, 3

Fadtors of 18: 2, 3^2

Factors of 21: 3, 7

Since the LCM of a set of numbers is mathematically defined to be the product of all the prime factors in the set taken to the highest degree they appear, the LCM must be the product of 22 X 32 X 7 = 252. 252 is the smallest number to be divisible by 12, 18, and 21.

User Avatar

Wiki User

9y ago

Still curious? Ask our experts.

Chat with our AI personalities

TaigaTaiga
Every great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
LaoLao
The path is yours to walk; I am only here to hold up a mirror.
Chat with Lao
More answers

Ans=252 1221=252 1814=252 21*12=252

User Avatar

Add your answer:

Earn +20 pts
Q: What is the least common multiple of 12 18 and 21?
Write your answer...
Submit
Still have questions?
magnify glass
imp