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What is the Least Common Multiple of 18740 and 18748?

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 18740 and 18748 is 87834380.

LCM(18740,18748) = 87834380

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Least Common Multiple of 18740 and 18748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18740 and 18748, than apply into the LCM equation.

GCF(18740,18748) = 4
LCM(18740,18748) = ( 18740 × 18748) / 4
LCM(18740,18748) = 351337520 / 4
LCM(18740,18748) = 87834380

Least Common Multiple (LCM) of 18740 and 18748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18740 and 18748. First we will calculate the prime factors of 18740 and 18748.

Prime Factorization of 18740

Prime factors of 18740 are 2, 5, 937. Prime factorization of 18740 in exponential form is:

18740 = 22 × 51 × 9371

Prime Factorization of 18748

Prime factors of 18748 are 2, 43, 109. Prime factorization of 18748 in exponential form is:

18748 = 22 × 431 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 18740 and 18748.

LCM(18740,18748) = 22 × 51 × 9371 × 431 × 1091
LCM(18740,18748) = 87834380