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What is the Least Common Multiple of 200 and 217?

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 200 and 217 is 43400.

LCM(200,217) = 43400

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Least Common Multiple of 200 and 217 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 200 and 217, than apply into the LCM equation.

GCF(200,217) = 1
LCM(200,217) = ( 200 × 217) / 1
LCM(200,217) = 43400 / 1
LCM(200,217) = 43400

Least Common Multiple (LCM) of 200 and 217 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 200 and 217. First we will calculate the prime factors of 200 and 217.

Prime Factorization of 200

Prime factors of 200 are 2, 5. Prime factorization of 200 in exponential form is:

200 = 23 × 52

Prime Factorization of 217

Prime factors of 217 are 7, 31. Prime factorization of 217 in exponential form is:

217 = 71 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 200 and 217.

LCM(200,217) = 23 × 52 × 71 × 311
LCM(200,217) = 43400