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What is the Least Common Multiple of 28866 and 28870?

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 28866 and 28870 is 416680710.

LCM(28866,28870) = 416680710

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Least Common Multiple of 28866 and 28870 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28866 and 28870, than apply into the LCM equation.

GCF(28866,28870) = 2
LCM(28866,28870) = ( 28866 × 28870) / 2
LCM(28866,28870) = 833361420 / 2
LCM(28866,28870) = 416680710

Least Common Multiple (LCM) of 28866 and 28870 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28866 and 28870. First we will calculate the prime factors of 28866 and 28870.

Prime Factorization of 28866

Prime factors of 28866 are 2, 3, 17, 283. Prime factorization of 28866 in exponential form is:

28866 = 21 × 31 × 171 × 2831

Prime Factorization of 28870

Prime factors of 28870 are 2, 5, 2887. Prime factorization of 28870 in exponential form is:

28870 = 21 × 51 × 28871

Now multiplying the highest exponent prime factors to calculate the LCM of 28866 and 28870.

LCM(28866,28870) = 21 × 31 × 171 × 2831 × 51 × 28871
LCM(28866,28870) = 416680710