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What is the Least Common Multiple of 19895 and 19906?

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 19895 and 19906 is 396029870.

LCM(19895,19906) = 396029870

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Least Common Multiple of 19895 and 19906 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19895 and 19906, than apply into the LCM equation.

GCF(19895,19906) = 1
LCM(19895,19906) = ( 19895 × 19906) / 1
LCM(19895,19906) = 396029870 / 1
LCM(19895,19906) = 396029870

Least Common Multiple (LCM) of 19895 and 19906 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19895 and 19906. First we will calculate the prime factors of 19895 and 19906.

Prime Factorization of 19895

Prime factors of 19895 are 5, 23, 173. Prime factorization of 19895 in exponential form is:

19895 = 51 × 231 × 1731

Prime Factorization of 19906

Prime factors of 19906 are 2, 37, 269. Prime factorization of 19906 in exponential form is:

19906 = 21 × 371 × 2691

Now multiplying the highest exponent prime factors to calculate the LCM of 19895 and 19906.

LCM(19895,19906) = 51 × 231 × 1731 × 21 × 371 × 2691
LCM(19895,19906) = 396029870