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What is the Least Common Multiple of 78717 and 78724?

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 78717 and 78724 is 6196917108.

LCM(78717,78724) = 6196917108

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Least Common Multiple of 78717 and 78724 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78717 and 78724, than apply into the LCM equation.

GCF(78717,78724) = 1
LCM(78717,78724) = ( 78717 × 78724) / 1
LCM(78717,78724) = 6196917108 / 1
LCM(78717,78724) = 6196917108

Least Common Multiple (LCM) of 78717 and 78724 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78717 and 78724. First we will calculate the prime factors of 78717 and 78724.

Prime Factorization of 78717

Prime factors of 78717 are 3, 19, 1381. Prime factorization of 78717 in exponential form is:

78717 = 31 × 191 × 13811

Prime Factorization of 78724

Prime factors of 78724 are 2, 19681. Prime factorization of 78724 in exponential form is:

78724 = 22 × 196811

Now multiplying the highest exponent prime factors to calculate the LCM of 78717 and 78724.

LCM(78717,78724) = 31 × 191 × 13811 × 22 × 196811
LCM(78717,78724) = 6196917108