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What is the Least Common Multiple of 28861 and 28868?

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 28861 and 28868 is 119022764.

LCM(28861,28868) = 119022764

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Least Common Multiple of 28861 and 28868 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28861 and 28868, than apply into the LCM equation.

GCF(28861,28868) = 7
LCM(28861,28868) = ( 28861 × 28868) / 7
LCM(28861,28868) = 833159348 / 7
LCM(28861,28868) = 119022764

Least Common Multiple (LCM) of 28861 and 28868 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28861 and 28868. First we will calculate the prime factors of 28861 and 28868.

Prime Factorization of 28861

Prime factors of 28861 are 7, 19, 31. Prime factorization of 28861 in exponential form is:

28861 = 72 × 191 × 311

Prime Factorization of 28868

Prime factors of 28868 are 2, 7, 1031. Prime factorization of 28868 in exponential form is:

28868 = 22 × 71 × 10311

Now multiplying the highest exponent prime factors to calculate the LCM of 28861 and 28868.

LCM(28861,28868) = 72 × 191 × 311 × 22 × 10311
LCM(28861,28868) = 119022764