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What is the Least Common Multiple of 6706 and 6720?

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 6706 and 6720 is 3218880.

LCM(6706,6720) = 3218880

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Least Common Multiple of 6706 and 6720 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6706 and 6720, than apply into the LCM equation.

GCF(6706,6720) = 14
LCM(6706,6720) = ( 6706 × 6720) / 14
LCM(6706,6720) = 45064320 / 14
LCM(6706,6720) = 3218880

Least Common Multiple (LCM) of 6706 and 6720 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6706 and 6720. First we will calculate the prime factors of 6706 and 6720.

Prime Factorization of 6706

Prime factors of 6706 are 2, 7, 479. Prime factorization of 6706 in exponential form is:

6706 = 21 × 71 × 4791

Prime Factorization of 6720

Prime factors of 6720 are 2, 3, 5, 7. Prime factorization of 6720 in exponential form is:

6720 = 26 × 31 × 51 × 71

Now multiplying the highest exponent prime factors to calculate the LCM of 6706 and 6720.

LCM(6706,6720) = 26 × 71 × 4791 × 31 × 51
LCM(6706,6720) = 3218880