What is the Least Common Multiple of 78156 and 78161?

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 78161 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 78161, than apply into the LCM equation.

GCF(78156,78161) = 1
LCM(78156,78161) = ( 78156 × 78161) / 1
LCM(78156,78161) = 6108751116 / 1
LCM(78156,78161) = 6108751116

Least Common Multiple (LCM) of 78156 and 78161 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78156 and 78161. First we will calculate the prime factors of 78156 and 78161.

Prime Factorization of 78156

Prime Factorization of 78161

Now multiplying the highest exponent prime factors to calculate the LCM of 78156 and 78161.

LCM(78156,78161) = 2² × 3² × 13¹ × 167¹ × 47¹ × 1663¹
LCM(78156,78161) = 6108751116