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What is the Least Common Multiple of 18126 and 18145?

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 18126 and 18145 is 17310330.

LCM(18126,18145) = 17310330

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Least Common Multiple of 18126 and 18145 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18126 and 18145, than apply into the LCM equation.

GCF(18126,18145) = 19
LCM(18126,18145) = ( 18126 × 18145) / 19
LCM(18126,18145) = 328896270 / 19
LCM(18126,18145) = 17310330

Least Common Multiple (LCM) of 18126 and 18145 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18126 and 18145. First we will calculate the prime factors of 18126 and 18145.

Prime Factorization of 18126

Prime factors of 18126 are 2, 3, 19, 53. Prime factorization of 18126 in exponential form is:

18126 = 21 × 32 × 191 × 531

Prime Factorization of 18145

Prime factors of 18145 are 5, 19, 191. Prime factorization of 18145 in exponential form is:

18145 = 51 × 191 × 1911

Now multiplying the highest exponent prime factors to calculate the LCM of 18126 and 18145.

LCM(18126,18145) = 21 × 32 × 191 × 531 × 51 × 1911
LCM(18126,18145) = 17310330