What is the Least Common Multiple of 78156 and 78173?

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 78156 and 78173 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78156 and 78173, than apply into the LCM equation.

GCF(78156,78173) = 1
LCM(78156,78173) = ( 78156 × 78173) / 1
LCM(78156,78173) = 6109688988 / 1
LCM(78156,78173) = 6109688988

Least Common Multiple (LCM) of 78156 and 78173 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78156 and 78173. First we will calculate the prime factors of 78156 and 78173.

Prime Factorization of 78156

Prime Factorization of 78173

Now multiplying the highest exponent prime factors to calculate the LCM of 78156 and 78173.

LCM(78156,78173) = 2² × 3² × 13¹ × 167¹ × 78173¹
LCM(78156,78173) = 6109688988