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What is the Least Common Multiple of 75831 and 75846?

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 75831 and 75846 is 1917159342.

LCM(75831,75846) = 1917159342

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Least Common Multiple of 75831 and 75846 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75831 and 75846, than apply into the LCM equation.

GCF(75831,75846) = 3
LCM(75831,75846) = ( 75831 × 75846) / 3
LCM(75831,75846) = 5751478026 / 3
LCM(75831,75846) = 1917159342

Least Common Multiple (LCM) of 75831 and 75846 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75831 and 75846. First we will calculate the prime factors of 75831 and 75846.

Prime Factorization of 75831

Prime factors of 75831 are 3, 7, 23, 157. Prime factorization of 75831 in exponential form is:

75831 = 31 × 71 × 231 × 1571

Prime Factorization of 75846

Prime factors of 75846 are 2, 3, 12641. Prime factorization of 75846 in exponential form is:

75846 = 21 × 31 × 126411

Now multiplying the highest exponent prime factors to calculate the LCM of 75831 and 75846.

LCM(75831,75846) = 31 × 71 × 231 × 1571 × 21 × 126411
LCM(75831,75846) = 1917159342