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What is the Least Common Multiple of 600 and 609?

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 600 and 609 is 121800.

LCM(600,609) = 121800

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Least Common Multiple of 600 and 609 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 600 and 609, than apply into the LCM equation.

GCF(600,609) = 3
LCM(600,609) = ( 600 × 609) / 3
LCM(600,609) = 365400 / 3
LCM(600,609) = 121800

Least Common Multiple (LCM) of 600 and 609 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 600 and 609. First we will calculate the prime factors of 600 and 609.

Prime Factorization of 600

Prime factors of 600 are 2, 3, 5. Prime factorization of 600 in exponential form is:

600 = 23 × 31 × 52

Prime Factorization of 609

Prime factors of 609 are 3, 7, 29. Prime factorization of 609 in exponential form is:

609 = 31 × 71 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 600 and 609.

LCM(600,609) = 23 × 31 × 52 × 71 × 291
LCM(600,609) = 121800