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What is the Least Common Multiple of 57728 and 57738?

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 57728 and 57738 is 1666549632.

LCM(57728,57738) = 1666549632

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Least Common Multiple of 57728 and 57738 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 57728 and 57738, than apply into the LCM equation.

GCF(57728,57738) = 2
LCM(57728,57738) = ( 57728 × 57738) / 2
LCM(57728,57738) = 3333099264 / 2
LCM(57728,57738) = 1666549632

Least Common Multiple (LCM) of 57728 and 57738 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 57728 and 57738. First we will calculate the prime factors of 57728 and 57738.

Prime Factorization of 57728

Prime factors of 57728 are 2, 11, 41. Prime factorization of 57728 in exponential form is:

57728 = 27 × 111 × 411

Prime Factorization of 57738

Prime factors of 57738 are 2, 3, 9623. Prime factorization of 57738 in exponential form is:

57738 = 21 × 31 × 96231

Now multiplying the highest exponent prime factors to calculate the LCM of 57728 and 57738.

LCM(57728,57738) = 27 × 111 × 411 × 31 × 96231
LCM(57728,57738) = 1666549632