What is the Least Common Multiple of 78543 and 78558?

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 of 78543 and 78558 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78543 and 78558, than apply into the LCM equation.

GCF(78543,78558) = 3
LCM(78543,78558) = ( 78543 × 78558) / 3
LCM(78543,78558) = 6170180994 / 3
LCM(78543,78558) = 2056726998

Least Common Multiple (LCM) of 78543 and 78558 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78543 and 78558. First we will calculate the prime factors of 78543 and 78558.

Prime Factorization of 78543

Prime Factorization of 78558

Now multiplying the highest exponent prime factors to calculate the LCM of 78543 and 78558.

LCM(78543,78558) = 3³ × 2909¹ × 2¹ × 13093¹
LCM(78543,78558) = 2056726998