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What is the Least Common Multiple of 77064 and 77072?

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 77064 and 77072 is 742434576.

LCM(77064,77072) = 742434576

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Least Common Multiple of 77064 and 77072 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77064 and 77072, than apply into the LCM equation.

GCF(77064,77072) = 8
LCM(77064,77072) = ( 77064 × 77072) / 8
LCM(77064,77072) = 5939476608 / 8
LCM(77064,77072) = 742434576

Least Common Multiple (LCM) of 77064 and 77072 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77064 and 77072. First we will calculate the prime factors of 77064 and 77072.

Prime Factorization of 77064

Prime factors of 77064 are 2, 3, 13, 19. Prime factorization of 77064 in exponential form is:

77064 = 23 × 31 × 132 × 191

Prime Factorization of 77072

Prime factors of 77072 are 2, 4817. Prime factorization of 77072 in exponential form is:

77072 = 24 × 48171

Now multiplying the highest exponent prime factors to calculate the LCM of 77064 and 77072.

LCM(77064,77072) = 24 × 31 × 132 × 191 × 48171
LCM(77064,77072) = 742434576