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What is the Least Common Multiple of 17605 and 17618?

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 17605 and 17618 is 310164890.

LCM(17605,17618) = 310164890

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Least Common Multiple of 17605 and 17618 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17605 and 17618, than apply into the LCM equation.

GCF(17605,17618) = 1
LCM(17605,17618) = ( 17605 × 17618) / 1
LCM(17605,17618) = 310164890 / 1
LCM(17605,17618) = 310164890

Least Common Multiple (LCM) of 17605 and 17618 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17605 and 17618. First we will calculate the prime factors of 17605 and 17618.

Prime Factorization of 17605

Prime factors of 17605 are 5, 7, 503. Prime factorization of 17605 in exponential form is:

17605 = 51 × 71 × 5031

Prime Factorization of 17618

Prime factors of 17618 are 2, 23, 383. Prime factorization of 17618 in exponential form is:

17618 = 21 × 231 × 3831

Now multiplying the highest exponent prime factors to calculate the LCM of 17605 and 17618.

LCM(17605,17618) = 51 × 71 × 5031 × 21 × 231 × 3831
LCM(17605,17618) = 310164890