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What is the Least Common Multiple of 6478 and 6484?

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 6478 and 6484 is 21001676.

LCM(6478,6484) = 21001676

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Least Common Multiple of 6478 and 6484 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6478 and 6484, than apply into the LCM equation.

GCF(6478,6484) = 2
LCM(6478,6484) = ( 6478 × 6484) / 2
LCM(6478,6484) = 42003352 / 2
LCM(6478,6484) = 21001676

Least Common Multiple (LCM) of 6478 and 6484 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6478 and 6484. First we will calculate the prime factors of 6478 and 6484.

Prime Factorization of 6478

Prime factors of 6478 are 2, 41, 79. Prime factorization of 6478 in exponential form is:

6478 = 21 × 411 × 791

Prime Factorization of 6484

Prime factors of 6484 are 2, 1621. Prime factorization of 6484 in exponential form is:

6484 = 22 × 16211

Now multiplying the highest exponent prime factors to calculate the LCM of 6478 and 6484.

LCM(6478,6484) = 22 × 411 × 791 × 16211
LCM(6478,6484) = 21001676