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What is the Least Common Multiple of 78551 and 78564?

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 78551 and 78564 is 6171280764.

LCM(78551,78564) = 6171280764

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Least Common Multiple of 78551 and 78564 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78551 and 78564, than apply into the LCM equation.

GCF(78551,78564) = 1
LCM(78551,78564) = ( 78551 × 78564) / 1
LCM(78551,78564) = 6171280764 / 1
LCM(78551,78564) = 6171280764

Least Common Multiple (LCM) of 78551 and 78564 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78551 and 78564. First we will calculate the prime factors of 78551 and 78564.

Prime Factorization of 78551

Prime factors of 78551 are 11, 37, 193. Prime factorization of 78551 in exponential form is:

78551 = 111 × 371 × 1931

Prime Factorization of 78564

Prime factors of 78564 are 2, 3, 6547. Prime factorization of 78564 in exponential form is:

78564 = 22 × 31 × 65471

Now multiplying the highest exponent prime factors to calculate the LCM of 78551 and 78564.

LCM(78551,78564) = 111 × 371 × 1931 × 22 × 31 × 65471
LCM(78551,78564) = 6171280764