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What is the Least Common Multiple of 28509 and 28523?

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 28509 and 28523 is 813162207.

LCM(28509,28523) = 813162207

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Least Common Multiple of 28509 and 28523 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28509 and 28523, than apply into the LCM equation.

GCF(28509,28523) = 1
LCM(28509,28523) = ( 28509 × 28523) / 1
LCM(28509,28523) = 813162207 / 1
LCM(28509,28523) = 813162207

Least Common Multiple (LCM) of 28509 and 28523 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28509 and 28523. First we will calculate the prime factors of 28509 and 28523.

Prime Factorization of 28509

Prime factors of 28509 are 3, 13, 17, 43. Prime factorization of 28509 in exponential form is:

28509 = 31 × 131 × 171 × 431

Prime Factorization of 28523

Prime factors of 28523 are 11, 2593. Prime factorization of 28523 in exponential form is:

28523 = 111 × 25931

Now multiplying the highest exponent prime factors to calculate the LCM of 28509 and 28523.

LCM(28509,28523) = 31 × 131 × 171 × 431 × 111 × 25931
LCM(28509,28523) = 813162207