What is the Least Common Multiple of 78606 and 78618?

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 78606 and 78618 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78606 and 78618, than apply into the LCM equation.

GCF(78606,78618) = 6
LCM(78606,78618) = ( 78606 × 78618) / 6
LCM(78606,78618) = 6179846508 / 6
LCM(78606,78618) = 1029974418

Least Common Multiple (LCM) of 78606 and 78618 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78606 and 78618. First we will calculate the prime factors of 78606 and 78618.

Prime Factorization of 78606

Prime Factorization of 78618

Now multiplying the highest exponent prime factors to calculate the LCM of 78606 and 78618.

LCM(78606,78618) = 2¹ × 3² × 11¹ × 397¹ × 13103¹
LCM(78606,78618) = 1029974418