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What is the Least Common Multiple of 75009 and 75020?

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 75009 and 75020 is 511561380.

LCM(75009,75020) = 511561380

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Least Common Multiple of 75009 and 75020 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75009 and 75020, than apply into the LCM equation.

GCF(75009,75020) = 11
LCM(75009,75020) = ( 75009 × 75020) / 11
LCM(75009,75020) = 5627175180 / 11
LCM(75009,75020) = 511561380

Least Common Multiple (LCM) of 75009 and 75020 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75009 and 75020. First we will calculate the prime factors of 75009 and 75020.

Prime Factorization of 75009

Prime factors of 75009 are 3, 11, 2273. Prime factorization of 75009 in exponential form is:

75009 = 31 × 111 × 22731

Prime Factorization of 75020

Prime factors of 75020 are 2, 5, 11, 31. Prime factorization of 75020 in exponential form is:

75020 = 22 × 51 × 112 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 75009 and 75020.

LCM(75009,75020) = 31 × 112 × 22731 × 22 × 51 × 311
LCM(75009,75020) = 511561380