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What is the Least Common Multiple of 12478 and 12484?

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 12478 and 12484 is 77887676.

LCM(12478,12484) = 77887676

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Least Common Multiple of 12478 and 12484 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12478 and 12484, than apply into the LCM equation.

GCF(12478,12484) = 2
LCM(12478,12484) = ( 12478 × 12484) / 2
LCM(12478,12484) = 155775352 / 2
LCM(12478,12484) = 77887676

Least Common Multiple (LCM) of 12478 and 12484 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12478 and 12484. First we will calculate the prime factors of 12478 and 12484.

Prime Factorization of 12478

Prime factors of 12478 are 2, 17, 367. Prime factorization of 12478 in exponential form is:

12478 = 21 × 171 × 3671

Prime Factorization of 12484

Prime factors of 12484 are 2, 3121. Prime factorization of 12484 in exponential form is:

12484 = 22 × 31211

Now multiplying the highest exponent prime factors to calculate the LCM of 12478 and 12484.

LCM(12478,12484) = 22 × 171 × 3671 × 31211
LCM(12478,12484) = 77887676