answersLogoWhite

0


Best Answer

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

8y ago
This answer is:
User Avatar
More answers
User Avatar

Emily Veerasammy

Lvl 2
2y ago

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

This answer is:
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
Related questions

What is the least common multiple of 12 18 and 26?

The least common multiple of 12 , 18 , 26 = 468


What is the Least common multiple for 12 18 and 30?

The Least Common Multiple of 12, 18, and 30 is 180.


What is the least common multiple of 7 12 and 18?

The Least Common Multiple (LCM) for 7 12 18 is 252.


What is the least common multiple of 5 12 and 18?

The least common multiple of 5, 12, and 18 is 180.


What is the least common multiple of 12 18 and 33?

The least common multiple of 12, 18, and 33 is 396.


What is the least common multiple of 18 17 and 12?

The Least Common Multiple (LCM) for 12 18 17 is 612.


What is the least common multiple of 12 18 and 27?

The least common multiple (LCM) of 12, 18, and 27 is 108.


What is the least common multiple of 12 15 18?

The least common multiple of 12,15 and 18 is 180.


What is the least common multiple of 11 12 and 18?

The LCM of 4, 9, 12, and 18 is: 36The least common multiple of 4 , 9 , 12 , 18 = 36The least common multiple of 4 9 12 and 18 is 36.LCM = 36


What is the least common multiple of 12 18 and 36?

The least common multiple of the numbers 12, 18 and 36 is 36.The least common multiple is the smallest positive number that is a multiple of two or more numbers.multiples of 12: 12, 24, 36, and so onmultiples of 18: 18, 36, and so onmultiples of 36: 36, and so on.The LCM of 12, 18 and 36 is 36.


What is the least common multiple of 12 9 and 18?

The least common multiple of 9, 12, and 18 is 36.9 *4= 3612*3= 3618*2= 36It is: 36It is: 36It is: 36


What is the least common multiple of 7 8 9 12 18?

The Least Common Multiple (LCM) for 7 8 9 12 18 is 504.