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What is the Least Common Multiple of 15818 and 15830?

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 15818 and 15830 is 125199470.

LCM(15818,15830) = 125199470

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Least Common Multiple of 15818 and 15830 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15818 and 15830, than apply into the LCM equation.

GCF(15818,15830) = 2
LCM(15818,15830) = ( 15818 × 15830) / 2
LCM(15818,15830) = 250398940 / 2
LCM(15818,15830) = 125199470

Least Common Multiple (LCM) of 15818 and 15830 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15818 and 15830. First we will calculate the prime factors of 15818 and 15830.

Prime Factorization of 15818

Prime factors of 15818 are 2, 11, 719. Prime factorization of 15818 in exponential form is:

15818 = 21 × 111 × 7191

Prime Factorization of 15830

Prime factors of 15830 are 2, 5, 1583. Prime factorization of 15830 in exponential form is:

15830 = 21 × 51 × 15831

Now multiplying the highest exponent prime factors to calculate the LCM of 15818 and 15830.

LCM(15818,15830) = 21 × 111 × 7191 × 51 × 15831
LCM(15818,15830) = 125199470