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What is the Least Common Multiple of 78729 and 78746?

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 78729 and 78746 is 6199593834.

LCM(78729,78746) = 6199593834

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Least Common Multiple of 78729 and 78746 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78729 and 78746, than apply into the LCM equation.

GCF(78729,78746) = 1
LCM(78729,78746) = ( 78729 × 78746) / 1
LCM(78729,78746) = 6199593834 / 1
LCM(78729,78746) = 6199593834

Least Common Multiple (LCM) of 78729 and 78746 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78729 and 78746. First we will calculate the prime factors of 78729 and 78746.

Prime Factorization of 78729

Prime factors of 78729 are 3, 7, 23, 163. Prime factorization of 78729 in exponential form is:

78729 = 31 × 71 × 231 × 1631

Prime Factorization of 78746

Prime factors of 78746 are 2, 39373. Prime factorization of 78746 in exponential form is:

78746 = 21 × 393731

Now multiplying the highest exponent prime factors to calculate the LCM of 78729 and 78746.

LCM(78729,78746) = 31 × 71 × 231 × 1631 × 21 × 393731
LCM(78729,78746) = 6199593834