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What is the Least Common Multiple of 28543 and 28551?

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 28543 and 28551 is 814931193.

LCM(28543,28551) = 814931193

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Least Common Multiple of 28543 and 28551 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28543 and 28551, than apply into the LCM equation.

GCF(28543,28551) = 1
LCM(28543,28551) = ( 28543 × 28551) / 1
LCM(28543,28551) = 814931193 / 1
LCM(28543,28551) = 814931193

Least Common Multiple (LCM) of 28543 and 28551 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28543 and 28551. First we will calculate the prime factors of 28543 and 28551.

Prime Factorization of 28543

Prime factors of 28543 are 17, 23, 73. Prime factorization of 28543 in exponential form is:

28543 = 171 × 231 × 731

Prime Factorization of 28551

Prime factors of 28551 are 3, 31, 307. Prime factorization of 28551 in exponential form is:

28551 = 31 × 311 × 3071

Now multiplying the highest exponent prime factors to calculate the LCM of 28543 and 28551.

LCM(28543,28551) = 171 × 231 × 731 × 31 × 311 × 3071
LCM(28543,28551) = 814931193