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What is the Least Common Multiple of 18836 and 18842?

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 18836 and 18842 is 177453956.

LCM(18836,18842) = 177453956

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Least Common Multiple of 18836 and 18842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18836 and 18842, than apply into the LCM equation.

GCF(18836,18842) = 2
LCM(18836,18842) = ( 18836 × 18842) / 2
LCM(18836,18842) = 354907912 / 2
LCM(18836,18842) = 177453956

Least Common Multiple (LCM) of 18836 and 18842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18836 and 18842. First we will calculate the prime factors of 18836 and 18842.

Prime Factorization of 18836

Prime factors of 18836 are 2, 17, 277. Prime factorization of 18836 in exponential form is:

18836 = 22 × 171 × 2771

Prime Factorization of 18842

Prime factors of 18842 are 2, 9421. Prime factorization of 18842 in exponential form is:

18842 = 21 × 94211

Now multiplying the highest exponent prime factors to calculate the LCM of 18836 and 18842.

LCM(18836,18842) = 22 × 171 × 2771 × 94211
LCM(18836,18842) = 177453956