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What is the Least Common Multiple of 38416 and 38428?

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 38416 and 38428 is 369062512.

LCM(38416,38428) = 369062512

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Least Common Multiple of 38416 and 38428 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38416 and 38428, than apply into the LCM equation.

GCF(38416,38428) = 4
LCM(38416,38428) = ( 38416 × 38428) / 4
LCM(38416,38428) = 1476250048 / 4
LCM(38416,38428) = 369062512

Least Common Multiple (LCM) of 38416 and 38428 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38416 and 38428. First we will calculate the prime factors of 38416 and 38428.

Prime Factorization of 38416

Prime factors of 38416 are 2, 7. Prime factorization of 38416 in exponential form is:

38416 = 24 × 74

Prime Factorization of 38428

Prime factors of 38428 are 2, 13, 739. Prime factorization of 38428 in exponential form is:

38428 = 22 × 131 × 7391

Now multiplying the highest exponent prime factors to calculate the LCM of 38416 and 38428.

LCM(38416,38428) = 24 × 74 × 131 × 7391
LCM(38416,38428) = 369062512