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What is the Least Common Multiple of 78657 and 78673?

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 78657 and 78673 is 6188182161.

LCM(78657,78673) = 6188182161

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Least Common Multiple of 78657 and 78673 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78657 and 78673, than apply into the LCM equation.

GCF(78657,78673) = 1
LCM(78657,78673) = ( 78657 × 78673) / 1
LCM(78657,78673) = 6188182161 / 1
LCM(78657,78673) = 6188182161

Least Common Multiple (LCM) of 78657 and 78673 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78657 and 78673. First we will calculate the prime factors of 78657 and 78673.

Prime Factorization of 78657

Prime factors of 78657 are 3, 157, 167. Prime factorization of 78657 in exponential form is:

78657 = 31 × 1571 × 1671

Prime Factorization of 78673

Prime factors of 78673 are 7, 11239. Prime factorization of 78673 in exponential form is:

78673 = 71 × 112391

Now multiplying the highest exponent prime factors to calculate the LCM of 78657 and 78673.

LCM(78657,78673) = 31 × 1571 × 1671 × 71 × 112391
LCM(78657,78673) = 6188182161