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What is the Least Common Multiple of 18711 and 18728?

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 18711 and 18728 is 350419608.

LCM(18711,18728) = 350419608

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Least Common Multiple of 18711 and 18728 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18711 and 18728, than apply into the LCM equation.

GCF(18711,18728) = 1
LCM(18711,18728) = ( 18711 × 18728) / 1
LCM(18711,18728) = 350419608 / 1
LCM(18711,18728) = 350419608

Least Common Multiple (LCM) of 18711 and 18728 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18711 and 18728. First we will calculate the prime factors of 18711 and 18728.

Prime Factorization of 18711

Prime factors of 18711 are 3, 7, 11. Prime factorization of 18711 in exponential form is:

18711 = 35 × 71 × 111

Prime Factorization of 18728

Prime factors of 18728 are 2, 2341. Prime factorization of 18728 in exponential form is:

18728 = 23 × 23411

Now multiplying the highest exponent prime factors to calculate the LCM of 18711 and 18728.

LCM(18711,18728) = 35 × 71 × 111 × 23 × 23411
LCM(18711,18728) = 350419608