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What is the Least Common Multiple of 12003 and 12015?

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 12003 and 12015 is 48072015.

LCM(12003,12015) = 48072015

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Least Common Multiple of 12003 and 12015 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12003 and 12015, than apply into the LCM equation.

GCF(12003,12015) = 3
LCM(12003,12015) = ( 12003 × 12015) / 3
LCM(12003,12015) = 144216045 / 3
LCM(12003,12015) = 48072015

Least Common Multiple (LCM) of 12003 and 12015 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12003 and 12015. First we will calculate the prime factors of 12003 and 12015.

Prime Factorization of 12003

Prime factors of 12003 are 3, 4001. Prime factorization of 12003 in exponential form is:

12003 = 31 × 40011

Prime Factorization of 12015

Prime factors of 12015 are 3, 5, 89. Prime factorization of 12015 in exponential form is:

12015 = 33 × 51 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 12003 and 12015.

LCM(12003,12015) = 33 × 40011 × 51 × 891
LCM(12003,12015) = 48072015