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What is the Least Common Multiple of 18430 and 18449?

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 18430 and 18449 is 17895530.

LCM(18430,18449) = 17895530

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Least Common Multiple of 18430 and 18449 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18430 and 18449, than apply into the LCM equation.

GCF(18430,18449) = 19
LCM(18430,18449) = ( 18430 × 18449) / 19
LCM(18430,18449) = 340015070 / 19
LCM(18430,18449) = 17895530

Least Common Multiple (LCM) of 18430 and 18449 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18430 and 18449. First we will calculate the prime factors of 18430 and 18449.

Prime Factorization of 18430

Prime factors of 18430 are 2, 5, 19, 97. Prime factorization of 18430 in exponential form is:

18430 = 21 × 51 × 191 × 971

Prime Factorization of 18449

Prime factors of 18449 are 19, 971. Prime factorization of 18449 in exponential form is:

18449 = 191 × 9711

Now multiplying the highest exponent prime factors to calculate the LCM of 18430 and 18449.

LCM(18430,18449) = 21 × 51 × 191 × 971 × 9711
LCM(18430,18449) = 17895530