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What is the Least Common Multiple of 27840 and 27853?

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 27840 and 27853 is 775427520.

LCM(27840,27853) = 775427520

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Least Common Multiple of 27840 and 27853 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27840 and 27853, than apply into the LCM equation.

GCF(27840,27853) = 1
LCM(27840,27853) = ( 27840 × 27853) / 1
LCM(27840,27853) = 775427520 / 1
LCM(27840,27853) = 775427520

Least Common Multiple (LCM) of 27840 and 27853 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27840 and 27853. First we will calculate the prime factors of 27840 and 27853.

Prime Factorization of 27840

Prime factors of 27840 are 2, 3, 5, 29. Prime factorization of 27840 in exponential form is:

27840 = 26 × 31 × 51 × 291

Prime Factorization of 27853

Prime factors of 27853 are 7, 23, 173. Prime factorization of 27853 in exponential form is:

27853 = 71 × 231 × 1731

Now multiplying the highest exponent prime factors to calculate the LCM of 27840 and 27853.

LCM(27840,27853) = 26 × 31 × 51 × 291 × 71 × 231 × 1731
LCM(27840,27853) = 775427520