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What is the Least Common Multiple of 28066 and 28080?

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 28066 and 28080 is 394046640.

LCM(28066,28080) = 394046640

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Least Common Multiple of 28066 and 28080 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28066 and 28080, than apply into the LCM equation.

GCF(28066,28080) = 2
LCM(28066,28080) = ( 28066 × 28080) / 2
LCM(28066,28080) = 788093280 / 2
LCM(28066,28080) = 394046640

Least Common Multiple (LCM) of 28066 and 28080 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28066 and 28080. First we will calculate the prime factors of 28066 and 28080.

Prime Factorization of 28066

Prime factors of 28066 are 2, 14033. Prime factorization of 28066 in exponential form is:

28066 = 21 × 140331

Prime Factorization of 28080

Prime factors of 28080 are 2, 3, 5, 13. Prime factorization of 28080 in exponential form is:

28080 = 24 × 33 × 51 × 131

Now multiplying the highest exponent prime factors to calculate the LCM of 28066 and 28080.

LCM(28066,28080) = 24 × 140331 × 33 × 51 × 131
LCM(28066,28080) = 394046640