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What is the Least Common Multiple of 612 and 619?

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 612 and 619 is 378828.

LCM(612,619) = 378828

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Least Common Multiple of 612 and 619 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 612 and 619, than apply into the LCM equation.

GCF(612,619) = 1
LCM(612,619) = ( 612 × 619) / 1
LCM(612,619) = 378828 / 1
LCM(612,619) = 378828

Least Common Multiple (LCM) of 612 and 619 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 612 and 619. First we will calculate the prime factors of 612 and 619.

Prime Factorization of 612

Prime factors of 612 are 2, 3, 17. Prime factorization of 612 in exponential form is:

612 = 22 × 32 × 171

Prime Factorization of 619

Prime factors of 619 are 619. Prime factorization of 619 in exponential form is:

619 = 6191

Now multiplying the highest exponent prime factors to calculate the LCM of 612 and 619.

LCM(612,619) = 22 × 32 × 171 × 6191
LCM(612,619) = 378828