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What is the Least Common Multiple of 209 and 224?

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 209 and 224 is 46816.

LCM(209,224) = 46816

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Least Common Multiple of 209 and 224 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 209 and 224, than apply into the LCM equation.

GCF(209,224) = 1
LCM(209,224) = ( 209 × 224) / 1
LCM(209,224) = 46816 / 1
LCM(209,224) = 46816

Least Common Multiple (LCM) of 209 and 224 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 209 and 224. First we will calculate the prime factors of 209 and 224.

Prime Factorization of 209

Prime factors of 209 are 11, 19. Prime factorization of 209 in exponential form is:

209 = 111 × 191

Prime Factorization of 224

Prime factors of 224 are 2, 7. Prime factorization of 224 in exponential form is:

224 = 25 × 71

Now multiplying the highest exponent prime factors to calculate the LCM of 209 and 224.

LCM(209,224) = 111 × 191 × 25 × 71
LCM(209,224) = 46816