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What is the Least Common Multiple of 38438 and 38451?

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 38438 and 38451 is 1477979538.

LCM(38438,38451) = 1477979538

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Least Common Multiple of 38438 and 38451 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38438 and 38451, than apply into the LCM equation.

GCF(38438,38451) = 1
LCM(38438,38451) = ( 38438 × 38451) / 1
LCM(38438,38451) = 1477979538 / 1
LCM(38438,38451) = 1477979538

Least Common Multiple (LCM) of 38438 and 38451 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38438 and 38451. First we will calculate the prime factors of 38438 and 38451.

Prime Factorization of 38438

Prime factors of 38438 are 2, 19219. Prime factorization of 38438 in exponential form is:

38438 = 21 × 192191

Prime Factorization of 38451

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

38451 = 31 × 71 × 18311

Now multiplying the highest exponent prime factors to calculate the LCM of 38438 and 38451.

LCM(38438,38451) = 21 × 192191 × 31 × 71 × 18311
LCM(38438,38451) = 1477979538