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What is the Least Common Multiple of 16566 and 16580?

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 16566 and 16580 is 137332140.

LCM(16566,16580) = 137332140

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Least Common Multiple of 16566 and 16580 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16566 and 16580, than apply into the LCM equation.

GCF(16566,16580) = 2
LCM(16566,16580) = ( 16566 × 16580) / 2
LCM(16566,16580) = 274664280 / 2
LCM(16566,16580) = 137332140

Least Common Multiple (LCM) of 16566 and 16580 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16566 and 16580. First we will calculate the prime factors of 16566 and 16580.

Prime Factorization of 16566

Prime factors of 16566 are 2, 3, 11, 251. Prime factorization of 16566 in exponential form is:

16566 = 21 × 31 × 111 × 2511

Prime Factorization of 16580

Prime factors of 16580 are 2, 5, 829. Prime factorization of 16580 in exponential form is:

16580 = 22 × 51 × 8291

Now multiplying the highest exponent prime factors to calculate the LCM of 16566 and 16580.

LCM(16566,16580) = 22 × 31 × 111 × 2511 × 51 × 8291
LCM(16566,16580) = 137332140