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What is the Least Common Multiple of 77388 and 77405?

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 77388 and 77405 is 5990218140.

LCM(77388,77405) = 5990218140

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Least Common Multiple of 77388 and 77405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77388 and 77405, than apply into the LCM equation.

GCF(77388,77405) = 1
LCM(77388,77405) = ( 77388 × 77405) / 1
LCM(77388,77405) = 5990218140 / 1
LCM(77388,77405) = 5990218140

Least Common Multiple (LCM) of 77388 and 77405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77388 and 77405. First we will calculate the prime factors of 77388 and 77405.

Prime Factorization of 77388

Prime factors of 77388 are 2, 3, 6449. Prime factorization of 77388 in exponential form is:

77388 = 22 × 31 × 64491

Prime Factorization of 77405

Prime factors of 77405 are 5, 113, 137. Prime factorization of 77405 in exponential form is:

77405 = 51 × 1131 × 1371

Now multiplying the highest exponent prime factors to calculate the LCM of 77388 and 77405.

LCM(77388,77405) = 22 × 31 × 64491 × 51 × 1131 × 1371
LCM(77388,77405) = 5990218140