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What is the Least Common Multiple of 23640 and 23653?

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 23640 and 23653 is 559156920.

LCM(23640,23653) = 559156920

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Least Common Multiple of 23640 and 23653 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23640 and 23653, than apply into the LCM equation.

GCF(23640,23653) = 1
LCM(23640,23653) = ( 23640 × 23653) / 1
LCM(23640,23653) = 559156920 / 1
LCM(23640,23653) = 559156920

Least Common Multiple (LCM) of 23640 and 23653 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23640 and 23653. First we will calculate the prime factors of 23640 and 23653.

Prime Factorization of 23640

Prime factors of 23640 are 2, 3, 5, 197. Prime factorization of 23640 in exponential form is:

23640 = 23 × 31 × 51 × 1971

Prime Factorization of 23653

Prime factors of 23653 are 7, 31, 109. Prime factorization of 23653 in exponential form is:

23653 = 71 × 311 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 23640 and 23653.

LCM(23640,23653) = 23 × 31 × 51 × 1971 × 71 × 311 × 1091
LCM(23640,23653) = 559156920