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What is the Least Common Multiple of 64440 and 64456?

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 64440 and 64456 is 519193080.

LCM(64440,64456) = 519193080

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Least Common Multiple of 64440 and 64456 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64440 and 64456, than apply into the LCM equation.

GCF(64440,64456) = 8
LCM(64440,64456) = ( 64440 × 64456) / 8
LCM(64440,64456) = 4153544640 / 8
LCM(64440,64456) = 519193080

Least Common Multiple (LCM) of 64440 and 64456 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64440 and 64456. First we will calculate the prime factors of 64440 and 64456.

Prime Factorization of 64440

Prime factors of 64440 are 2, 3, 5, 179. Prime factorization of 64440 in exponential form is:

64440 = 23 × 32 × 51 × 1791

Prime Factorization of 64456

Prime factors of 64456 are 2, 7, 1151. Prime factorization of 64456 in exponential form is:

64456 = 23 × 71 × 11511

Now multiplying the highest exponent prime factors to calculate the LCM of 64440 and 64456.

LCM(64440,64456) = 23 × 32 × 51 × 1791 × 71 × 11511
LCM(64440,64456) = 519193080