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What is the Least Common Multiple of 18361 and 18378?

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 18361 and 18378 is 337438458.

LCM(18361,18378) = 337438458

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Least Common Multiple of 18361 and 18378 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18361 and 18378, than apply into the LCM equation.

GCF(18361,18378) = 1
LCM(18361,18378) = ( 18361 × 18378) / 1
LCM(18361,18378) = 337438458 / 1
LCM(18361,18378) = 337438458

Least Common Multiple (LCM) of 18361 and 18378 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18361 and 18378. First we will calculate the prime factors of 18361 and 18378.

Prime Factorization of 18361

Prime factors of 18361 are 7, 43, 61. Prime factorization of 18361 in exponential form is:

18361 = 71 × 431 × 611

Prime Factorization of 18378

Prime factors of 18378 are 2, 3, 1021. Prime factorization of 18378 in exponential form is:

18378 = 21 × 32 × 10211

Now multiplying the highest exponent prime factors to calculate the LCM of 18361 and 18378.

LCM(18361,18378) = 71 × 431 × 611 × 21 × 32 × 10211
LCM(18361,18378) = 337438458