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What is the Least Common Multiple of 57405 and 57424?

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 57405 and 57424 is 3296424720.

LCM(57405,57424) = 3296424720

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Least Common Multiple of 57405 and 57424 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 57405 and 57424, than apply into the LCM equation.

GCF(57405,57424) = 1
LCM(57405,57424) = ( 57405 × 57424) / 1
LCM(57405,57424) = 3296424720 / 1
LCM(57405,57424) = 3296424720

Least Common Multiple (LCM) of 57405 and 57424 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 57405 and 57424. First we will calculate the prime factors of 57405 and 57424.

Prime Factorization of 57405

Prime factors of 57405 are 3, 5, 43, 89. Prime factorization of 57405 in exponential form is:

57405 = 31 × 51 × 431 × 891

Prime Factorization of 57424

Prime factors of 57424 are 2, 37, 97. Prime factorization of 57424 in exponential form is:

57424 = 24 × 371 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 57405 and 57424.

LCM(57405,57424) = 31 × 51 × 431 × 891 × 24 × 371 × 971
LCM(57405,57424) = 3296424720