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What is the Least Common Multiple of 72831 and 72842?

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 72831 and 72842 is 482286882.

LCM(72831,72842) = 482286882

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Least Common Multiple of 72831 and 72842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72831 and 72842, than apply into the LCM equation.

GCF(72831,72842) = 11
LCM(72831,72842) = ( 72831 × 72842) / 11
LCM(72831,72842) = 5305155702 / 11
LCM(72831,72842) = 482286882

Least Common Multiple (LCM) of 72831 and 72842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72831 and 72842. First we will calculate the prime factors of 72831 and 72842.

Prime Factorization of 72831

Prime factors of 72831 are 3, 11, 2207. Prime factorization of 72831 in exponential form is:

72831 = 31 × 111 × 22071

Prime Factorization of 72842

Prime factors of 72842 are 2, 7, 11, 43. Prime factorization of 72842 in exponential form is:

72842 = 21 × 71 × 112 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 72831 and 72842.

LCM(72831,72842) = 31 × 112 × 22071 × 21 × 71 × 431
LCM(72831,72842) = 482286882