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What is the Least Common Multiple of 28742 and 28758?

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 28742 and 28758 is 413281218.

LCM(28742,28758) = 413281218

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Least Common Multiple of 28742 and 28758 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28742 and 28758, than apply into the LCM equation.

GCF(28742,28758) = 2
LCM(28742,28758) = ( 28742 × 28758) / 2
LCM(28742,28758) = 826562436 / 2
LCM(28742,28758) = 413281218

Least Common Multiple (LCM) of 28742 and 28758 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28742 and 28758. First we will calculate the prime factors of 28742 and 28758.

Prime Factorization of 28742

Prime factors of 28742 are 2, 7, 2053. Prime factorization of 28742 in exponential form is:

28742 = 21 × 71 × 20531

Prime Factorization of 28758

Prime factors of 28758 are 2, 3, 4793. Prime factorization of 28758 in exponential form is:

28758 = 21 × 31 × 47931

Now multiplying the highest exponent prime factors to calculate the LCM of 28742 and 28758.

LCM(28742,28758) = 21 × 71 × 20531 × 31 × 47931
LCM(28742,28758) = 413281218