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What is the Least Common Multiple of 76718 and 76728?

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 76718 and 76728 is 2943209352.

LCM(76718,76728) = 2943209352

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Least Common Multiple of 76718 and 76728 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76718 and 76728, than apply into the LCM equation.

GCF(76718,76728) = 2
LCM(76718,76728) = ( 76718 × 76728) / 2
LCM(76718,76728) = 5886418704 / 2
LCM(76718,76728) = 2943209352

Least Common Multiple (LCM) of 76718 and 76728 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76718 and 76728. First we will calculate the prime factors of 76718 and 76728.

Prime Factorization of 76718

Prime factors of 76718 are 2, 89, 431. Prime factorization of 76718 in exponential form is:

76718 = 21 × 891 × 4311

Prime Factorization of 76728

Prime factors of 76728 are 2, 3, 23, 139. Prime factorization of 76728 in exponential form is:

76728 = 23 × 31 × 231 × 1391

Now multiplying the highest exponent prime factors to calculate the LCM of 76718 and 76728.

LCM(76718,76728) = 23 × 891 × 4311 × 31 × 231 × 1391
LCM(76718,76728) = 2943209352