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What is the Least Common Multiple of 87819 and 87830?

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 87819 and 87830 is 7713142770.

LCM(87819,87830) = 7713142770

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Least Common Multiple of 87819 and 87830 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87819 and 87830, than apply into the LCM equation.

GCF(87819,87830) = 1
LCM(87819,87830) = ( 87819 × 87830) / 1
LCM(87819,87830) = 7713142770 / 1
LCM(87819,87830) = 7713142770

Least Common Multiple (LCM) of 87819 and 87830 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87819 and 87830. First we will calculate the prime factors of 87819 and 87830.

Prime Factorization of 87819

Prime factors of 87819 are 3, 73, 401. Prime factorization of 87819 in exponential form is:

87819 = 31 × 731 × 4011

Prime Factorization of 87830

Prime factors of 87830 are 2, 5, 8783. Prime factorization of 87830 in exponential form is:

87830 = 21 × 51 × 87831

Now multiplying the highest exponent prime factors to calculate the LCM of 87819 and 87830.

LCM(87819,87830) = 31 × 731 × 4011 × 21 × 51 × 87831
LCM(87819,87830) = 7713142770