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What is the Least Common Multiple of 6600 and 6605?

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 6600 and 6605 is 8718600.

LCM(6600,6605) = 8718600

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Least Common Multiple of 6600 and 6605 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6600 and 6605, than apply into the LCM equation.

GCF(6600,6605) = 5
LCM(6600,6605) = ( 6600 × 6605) / 5
LCM(6600,6605) = 43593000 / 5
LCM(6600,6605) = 8718600

Least Common Multiple (LCM) of 6600 and 6605 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6600 and 6605. First we will calculate the prime factors of 6600 and 6605.

Prime Factorization of 6600

Prime factors of 6600 are 2, 3, 5, 11. Prime factorization of 6600 in exponential form is:

6600 = 23 × 31 × 52 × 111

Prime Factorization of 6605

Prime factors of 6605 are 5, 1321. Prime factorization of 6605 in exponential form is:

6605 = 51 × 13211

Now multiplying the highest exponent prime factors to calculate the LCM of 6600 and 6605.

LCM(6600,6605) = 23 × 31 × 52 × 111 × 13211
LCM(6600,6605) = 8718600