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What is the Least Common Multiple of 78714 and 78729?

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 78714 and 78729 is 2065691502.

LCM(78714,78729) = 2065691502

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Least Common Multiple of 78714 and 78729 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78714 and 78729, than apply into the LCM equation.

GCF(78714,78729) = 3
LCM(78714,78729) = ( 78714 × 78729) / 3
LCM(78714,78729) = 6197074506 / 3
LCM(78714,78729) = 2065691502

Least Common Multiple (LCM) of 78714 and 78729 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78714 and 78729. First we will calculate the prime factors of 78714 and 78729.

Prime Factorization of 78714

Prime factors of 78714 are 2, 3, 4373. Prime factorization of 78714 in exponential form is:

78714 = 21 × 32 × 43731

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

Now multiplying the highest exponent prime factors to calculate the LCM of 78714 and 78729.

LCM(78714,78729) = 21 × 32 × 43731 × 71 × 231 × 1631
LCM(78714,78729) = 2065691502