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What is the Least Common Multiple of 86879 and 86890?

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 86879 and 86890 is 7548916310.

LCM(86879,86890) = 7548916310

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Least Common Multiple of 86879 and 86890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86879 and 86890, than apply into the LCM equation.

GCF(86879,86890) = 1
LCM(86879,86890) = ( 86879 × 86890) / 1
LCM(86879,86890) = 7548916310 / 1
LCM(86879,86890) = 7548916310

Least Common Multiple (LCM) of 86879 and 86890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86879 and 86890. First we will calculate the prime factors of 86879 and 86890.

Prime Factorization of 86879

Prime factors of 86879 are 13, 41, 163. Prime factorization of 86879 in exponential form is:

86879 = 131 × 411 × 1631

Prime Factorization of 86890

Prime factors of 86890 are 2, 5, 8689. Prime factorization of 86890 in exponential form is:

86890 = 21 × 51 × 86891

Now multiplying the highest exponent prime factors to calculate the LCM of 86879 and 86890.

LCM(86879,86890) = 131 × 411 × 1631 × 21 × 51 × 86891
LCM(86879,86890) = 7548916310