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What is the Least Common Multiple of 78864 and 78869?

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 78864 and 78869 is 6219924816.

LCM(78864,78869) = 6219924816

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Least Common Multiple of 78864 and 78869 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78864 and 78869, than apply into the LCM equation.

GCF(78864,78869) = 1
LCM(78864,78869) = ( 78864 × 78869) / 1
LCM(78864,78869) = 6219924816 / 1
LCM(78864,78869) = 6219924816

Least Common Multiple (LCM) of 78864 and 78869 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78864 and 78869. First we will calculate the prime factors of 78864 and 78869.

Prime Factorization of 78864

Prime factors of 78864 are 2, 3, 31, 53. Prime factorization of 78864 in exponential form is:

78864 = 24 × 31 × 311 × 531

Prime Factorization of 78869

Prime factors of 78869 are 7, 19, 593. Prime factorization of 78869 in exponential form is:

78869 = 71 × 191 × 5931

Now multiplying the highest exponent prime factors to calculate the LCM of 78864 and 78869.

LCM(78864,78869) = 24 × 31 × 311 × 531 × 71 × 191 × 5931
LCM(78864,78869) = 6219924816