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What is the Least Common Multiple of 64610 and 64618?

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 64610 and 64618 is 2087484490.

LCM(64610,64618) = 2087484490

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Least Common Multiple of 64610 and 64618 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64610 and 64618, than apply into the LCM equation.

GCF(64610,64618) = 2
LCM(64610,64618) = ( 64610 × 64618) / 2
LCM(64610,64618) = 4174968980 / 2
LCM(64610,64618) = 2087484490

Least Common Multiple (LCM) of 64610 and 64618 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64610 and 64618. First we will calculate the prime factors of 64610 and 64618.

Prime Factorization of 64610

Prime factors of 64610 are 2, 5, 7, 13, 71. Prime factorization of 64610 in exponential form is:

64610 = 21 × 51 × 71 × 131 × 711

Prime Factorization of 64618

Prime factors of 64618 are 2, 32309. Prime factorization of 64618 in exponential form is:

64618 = 21 × 323091

Now multiplying the highest exponent prime factors to calculate the LCM of 64610 and 64618.

LCM(64610,64618) = 21 × 51 × 71 × 131 × 711 × 323091
LCM(64610,64618) = 2087484490