What is the Least Common Multiple of 78108 and 78122?

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 78108 and 78122 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78108 and 78122, than apply into the LCM equation.

GCF(78108,78122) = 2
LCM(78108,78122) = ( 78108 × 78122) / 2
LCM(78108,78122) = 6101953176 / 2
LCM(78108,78122) = 3050976588

Least Common Multiple (LCM) of 78108 and 78122 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78108 and 78122. First we will calculate the prime factors of 78108 and 78122.

Prime Factorization of 78108

Prime Factorization of 78122

Now multiplying the highest exponent prime factors to calculate the LCM of 78108 and 78122.

LCM(78108,78122) = 2² × 3¹ × 23¹ × 283¹ × 11¹ × 53¹ × 67¹
LCM(78108,78122) = 3050976588