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What is the Least Common Multiple of 78928 and 78944?

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 78928 and 78944 is 389430752.

LCM(78928,78944) = 389430752

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Least Common Multiple of 78928 and 78944 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78928 and 78944, than apply into the LCM equation.

GCF(78928,78944) = 16
LCM(78928,78944) = ( 78928 × 78944) / 16
LCM(78928,78944) = 6230892032 / 16
LCM(78928,78944) = 389430752

Least Common Multiple (LCM) of 78928 and 78944 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78928 and 78944. First we will calculate the prime factors of 78928 and 78944.

Prime Factorization of 78928

Prime factors of 78928 are 2, 4933. Prime factorization of 78928 in exponential form is:

78928 = 24 × 49331

Prime Factorization of 78944

Prime factors of 78944 are 2, 2467. Prime factorization of 78944 in exponential form is:

78944 = 25 × 24671

Now multiplying the highest exponent prime factors to calculate the LCM of 78928 and 78944.

LCM(78928,78944) = 25 × 49331 × 24671
LCM(78928,78944) = 389430752