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What is the Least Common Multiple of 18625 and 18643?

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 18625 and 18643 is 347225875.

LCM(18625,18643) = 347225875

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Least Common Multiple of 18625 and 18643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18625 and 18643, than apply into the LCM equation.

GCF(18625,18643) = 1
LCM(18625,18643) = ( 18625 × 18643) / 1
LCM(18625,18643) = 347225875 / 1
LCM(18625,18643) = 347225875

Least Common Multiple (LCM) of 18625 and 18643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18625 and 18643. First we will calculate the prime factors of 18625 and 18643.

Prime Factorization of 18625

Prime factors of 18625 are 5, 149. Prime factorization of 18625 in exponential form is:

18625 = 53 × 1491

Prime Factorization of 18643

Prime factors of 18643 are 103, 181. Prime factorization of 18643 in exponential form is:

18643 = 1031 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 18625 and 18643.

LCM(18625,18643) = 53 × 1491 × 1031 × 1811
LCM(18625,18643) = 347225875