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What is the Least Common Multiple of 83880 and 83898?

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 83880 and 83898 is 390964680.

LCM(83880,83898) = 390964680

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Least Common Multiple of 83880 and 83898 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83880 and 83898, than apply into the LCM equation.

GCF(83880,83898) = 18
LCM(83880,83898) = ( 83880 × 83898) / 18
LCM(83880,83898) = 7037364240 / 18
LCM(83880,83898) = 390964680

Least Common Multiple (LCM) of 83880 and 83898 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83880 and 83898. First we will calculate the prime factors of 83880 and 83898.

Prime Factorization of 83880

Prime factors of 83880 are 2, 3, 5, 233. Prime factorization of 83880 in exponential form is:

83880 = 23 × 32 × 51 × 2331

Prime Factorization of 83898

Prime factors of 83898 are 2, 3, 59, 79. Prime factorization of 83898 in exponential form is:

83898 = 21 × 32 × 591 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 83880 and 83898.

LCM(83880,83898) = 23 × 32 × 51 × 2331 × 591 × 791
LCM(83880,83898) = 390964680