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What is the Least Common Multiple of 74405 and 74424?

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 74405 and 74424 is 5537517720.

LCM(74405,74424) = 5537517720

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Least Common Multiple of 74405 and 74424 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74405 and 74424, than apply into the LCM equation.

GCF(74405,74424) = 1
LCM(74405,74424) = ( 74405 × 74424) / 1
LCM(74405,74424) = 5537517720 / 1
LCM(74405,74424) = 5537517720

Least Common Multiple (LCM) of 74405 and 74424 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74405 and 74424. First we will calculate the prime factors of 74405 and 74424.

Prime Factorization of 74405

Prime factors of 74405 are 5, 23, 647. Prime factorization of 74405 in exponential form is:

74405 = 51 × 231 × 6471

Prime Factorization of 74424

Prime factors of 74424 are 2, 3, 7, 443. Prime factorization of 74424 in exponential form is:

74424 = 23 × 31 × 71 × 4431

Now multiplying the highest exponent prime factors to calculate the LCM of 74405 and 74424.

LCM(74405,74424) = 51 × 231 × 6471 × 23 × 31 × 71 × 4431
LCM(74405,74424) = 5537517720