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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.
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What is the least common multiple of 12 18 and 36?
Oh, dude, the least common multiple of 12, 18, and 36 is like the smallest number that all of them can divide into evenly. So, you just gotta find the smallest number that 12, 18, and 36 can all be divided by without leaving a remainder. It's like finding the smallest party all three of them can attend without any drama. And that magic number is 36.
