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What is the Least Common Multiple of 18981 and 18994?

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 18981 and 18994 is 360525114.

LCM(18981,18994) = 360525114

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Least Common Multiple of 18981 and 18994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18981 and 18994, than apply into the LCM equation.

GCF(18981,18994) = 1
LCM(18981,18994) = ( 18981 × 18994) / 1
LCM(18981,18994) = 360525114 / 1
LCM(18981,18994) = 360525114

Least Common Multiple (LCM) of 18981 and 18994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18981 and 18994. First we will calculate the prime factors of 18981 and 18994.

Prime Factorization of 18981

Prime factors of 18981 are 3, 19, 37. Prime factorization of 18981 in exponential form is:

18981 = 33 × 191 × 371

Prime Factorization of 18994

Prime factors of 18994 are 2, 9497. Prime factorization of 18994 in exponential form is:

18994 = 21 × 94971

Now multiplying the highest exponent prime factors to calculate the LCM of 18981 and 18994.

LCM(18981,18994) = 33 × 191 × 371 × 21 × 94971
LCM(18981,18994) = 360525114