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What is the Least Common Multiple of 18998 and 19010?

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 18998 and 19010 is 180575990.

LCM(18998,19010) = 180575990

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Least Common Multiple of 18998 and 19010 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18998 and 19010, than apply into the LCM equation.

GCF(18998,19010) = 2
LCM(18998,19010) = ( 18998 × 19010) / 2
LCM(18998,19010) = 361151980 / 2
LCM(18998,19010) = 180575990

Least Common Multiple (LCM) of 18998 and 19010 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18998 and 19010. First we will calculate the prime factors of 18998 and 19010.

Prime Factorization of 18998

Prime factors of 18998 are 2, 7, 23, 59. Prime factorization of 18998 in exponential form is:

18998 = 21 × 71 × 231 × 591

Prime Factorization of 19010

Prime factors of 19010 are 2, 5, 1901. Prime factorization of 19010 in exponential form is:

19010 = 21 × 51 × 19011

Now multiplying the highest exponent prime factors to calculate the LCM of 18998 and 19010.

LCM(18998,19010) = 21 × 71 × 231 × 591 × 51 × 19011
LCM(18998,19010) = 180575990