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What is the Least Common Multiple of 28045 and 28060?

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 28045 and 28060 is 157388540.

LCM(28045,28060) = 157388540

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Least Common Multiple of 28045 and 28060 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28045 and 28060, than apply into the LCM equation.

GCF(28045,28060) = 5
LCM(28045,28060) = ( 28045 × 28060) / 5
LCM(28045,28060) = 786942700 / 5
LCM(28045,28060) = 157388540

Least Common Multiple (LCM) of 28045 and 28060 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28045 and 28060. First we will calculate the prime factors of 28045 and 28060.

Prime Factorization of 28045

Prime factors of 28045 are 5, 71, 79. Prime factorization of 28045 in exponential form is:

28045 = 51 × 711 × 791

Prime Factorization of 28060

Prime factors of 28060 are 2, 5, 23, 61. Prime factorization of 28060 in exponential form is:

28060 = 22 × 51 × 231 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 28045 and 28060.

LCM(28045,28060) = 51 × 711 × 791 × 22 × 231 × 611
LCM(28045,28060) = 157388540