# What is the Least Common Multiple of 219 and 228?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 219 and 228 is 16644.

LCM(219,228) = 16644

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## Least Common Multiple of 219 and 228 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 219 and 228, than apply into the LCM equation.

GCF(219,228) = 3
LCM(219,228) = ( 219 × 228) / 3
LCM(219,228) = 49932 / 3
LCM(219,228) = 16644

## Least Common Multiple (LCM) of 219 and 228 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 219 and 228. First we will calculate the prime factors of 219 and 228.

### Prime Factorization of 219

Prime factors of 219 are 3, 73. Prime factorization of 219 in exponential form is:

219 = 31 × 731

### Prime Factorization of 228

Prime factors of 228 are 2, 3, 19. Prime factorization of 228 in exponential form is:

228 = 22 × 31 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 219 and 228.

LCM(219,228) = 31 × 731 × 22 × 191
LCM(219,228) = 16644

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