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What is the Least Common Multiple of 74124 and 74139?

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 74124 and 74139 is 1831826412.

LCM(74124,74139) = 1831826412

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Least Common Multiple of 74124 and 74139 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74124 and 74139, than apply into the LCM equation.

GCF(74124,74139) = 3
LCM(74124,74139) = ( 74124 × 74139) / 3
LCM(74124,74139) = 5495479236 / 3
LCM(74124,74139) = 1831826412

Least Common Multiple (LCM) of 74124 and 74139 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74124 and 74139. First we will calculate the prime factors of 74124 and 74139.

Prime Factorization of 74124

Prime factors of 74124 are 2, 3, 29, 71. Prime factorization of 74124 in exponential form is:

74124 = 22 × 32 × 291 × 711

Prime Factorization of 74139

Prime factors of 74139 are 3, 13, 1901. Prime factorization of 74139 in exponential form is:

74139 = 31 × 131 × 19011

Now multiplying the highest exponent prime factors to calculate the LCM of 74124 and 74139.

LCM(74124,74139) = 22 × 32 × 291 × 711 × 131 × 19011
LCM(74124,74139) = 1831826412