What is the Least Common Multiple of 72195 and 72215?

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 72195 and 72215 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72195 and 72215, than apply into the LCM equation.

GCF(72195,72215) = 5
LCM(72195,72215) = ( 72195 × 72215) / 5
LCM(72195,72215) = 5213561925 / 5
LCM(72195,72215) = 1042712385

Least Common Multiple (LCM) of 72195 and 72215 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72195 and 72215. First we will calculate the prime factors of 72195 and 72215.

Prime Factorization of 72195

Prime Factorization of 72215

Now multiplying the highest exponent prime factors to calculate the LCM of 72195 and 72215.

LCM(72195,72215) = 3¹ × 5¹ × 4813¹ × 11¹ × 13¹ × 101¹
LCM(72195,72215) = 1042712385