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What is the Least Common Multiple of 18979 and 18989?

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 18979 and 18989 is 360392231.

LCM(18979,18989) = 360392231

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Least Common Multiple of 18979 and 18989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18979 and 18989, than apply into the LCM equation.

GCF(18979,18989) = 1
LCM(18979,18989) = ( 18979 × 18989) / 1
LCM(18979,18989) = 360392231 / 1
LCM(18979,18989) = 360392231

Least Common Multiple (LCM) of 18979 and 18989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18979 and 18989. First we will calculate the prime factors of 18979 and 18989.

Prime Factorization of 18979

Prime factors of 18979 are 18979. Prime factorization of 18979 in exponential form is:

18979 = 189791

Prime Factorization of 18989

Prime factors of 18989 are 17, 1117. Prime factorization of 18989 in exponential form is:

18989 = 171 × 11171

Now multiplying the highest exponent prime factors to calculate the LCM of 18979 and 18989.

LCM(18979,18989) = 189791 × 171 × 11171
LCM(18979,18989) = 360392231