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What is the Least Common Multiple of 74385 and 74389?

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 74385 and 74389 is 5533425765.

LCM(74385,74389) = 5533425765

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Least Common Multiple of 74385 and 74389 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74385 and 74389, than apply into the LCM equation.

GCF(74385,74389) = 1
LCM(74385,74389) = ( 74385 × 74389) / 1
LCM(74385,74389) = 5533425765 / 1
LCM(74385,74389) = 5533425765

Least Common Multiple (LCM) of 74385 and 74389 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74385 and 74389. First we will calculate the prime factors of 74385 and 74389.

Prime Factorization of 74385

Prime factors of 74385 are 3, 5, 19, 29. Prime factorization of 74385 in exponential form is:

74385 = 33 × 51 × 191 × 291

Prime Factorization of 74389

Prime factors of 74389 are 7, 10627. Prime factorization of 74389 in exponential form is:

74389 = 71 × 106271

Now multiplying the highest exponent prime factors to calculate the LCM of 74385 and 74389.

LCM(74385,74389) = 33 × 51 × 191 × 291 × 71 × 106271
LCM(74385,74389) = 5533425765