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What is the Least Common Multiple of 78384 and 78389?

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 78384 and 78389 is 6144443376.

LCM(78384,78389) = 6144443376

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Least Common Multiple of 78384 and 78389 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78384 and 78389, than apply into the LCM equation.

GCF(78384,78389) = 1
LCM(78384,78389) = ( 78384 × 78389) / 1
LCM(78384,78389) = 6144443376 / 1
LCM(78384,78389) = 6144443376

Least Common Multiple (LCM) of 78384 and 78389 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78384 and 78389. First we will calculate the prime factors of 78384 and 78389.

Prime Factorization of 78384

Prime factors of 78384 are 2, 3, 23, 71. Prime factorization of 78384 in exponential form is:

78384 = 24 × 31 × 231 × 711

Prime Factorization of 78389

Prime factors of 78389 are 43, 1823. Prime factorization of 78389 in exponential form is:

78389 = 431 × 18231

Now multiplying the highest exponent prime factors to calculate the LCM of 78384 and 78389.

LCM(78384,78389) = 24 × 31 × 231 × 711 × 431 × 18231
LCM(78384,78389) = 6144443376