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What is the Least Common Multiple of 28557 and 28573?

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 28557 and 28573 is 815959161.

LCM(28557,28573) = 815959161

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Least Common Multiple of 28557 and 28573 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28557 and 28573, than apply into the LCM equation.

GCF(28557,28573) = 1
LCM(28557,28573) = ( 28557 × 28573) / 1
LCM(28557,28573) = 815959161 / 1
LCM(28557,28573) = 815959161

Least Common Multiple (LCM) of 28557 and 28573 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28557 and 28573. First we will calculate the prime factors of 28557 and 28573.

Prime Factorization of 28557

Prime factors of 28557 are 3, 19, 167. Prime factorization of 28557 in exponential form is:

28557 = 32 × 191 × 1671

Prime Factorization of 28573

Prime factors of 28573 are 28573. Prime factorization of 28573 in exponential form is:

28573 = 285731

Now multiplying the highest exponent prime factors to calculate the LCM of 28557 and 28573.

LCM(28557,28573) = 32 × 191 × 1671 × 285731
LCM(28557,28573) = 815959161