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What is the Least Common Multiple of 38451 and 38457?

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 38451 and 38457 is 492903369.

LCM(38451,38457) = 492903369

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Least Common Multiple of 38451 and 38457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38451 and 38457, than apply into the LCM equation.

GCF(38451,38457) = 3
LCM(38451,38457) = ( 38451 × 38457) / 3
LCM(38451,38457) = 1478710107 / 3
LCM(38451,38457) = 492903369

Least Common Multiple (LCM) of 38451 and 38457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38451 and 38457. First we will calculate the prime factors of 38451 and 38457.

Prime Factorization of 38451

Prime factors of 38451 are 3, 7, 1831. Prime factorization of 38451 in exponential form is:

38451 = 31 × 71 × 18311

Prime Factorization of 38457

Prime factors of 38457 are 3, 4273. Prime factorization of 38457 in exponential form is:

38457 = 32 × 42731

Now multiplying the highest exponent prime factors to calculate the LCM of 38451 and 38457.

LCM(38451,38457) = 32 × 71 × 18311 × 42731
LCM(38451,38457) = 492903369