What is the Least Common Multiple of 40170 and 40185?

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 40170 and 40185 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40170 and 40185, than apply into the LCM equation.

GCF(40170,40185) = 15
LCM(40170,40185) = ( 40170 × 40185) / 15
LCM(40170,40185) = 1614231450 / 15
LCM(40170,40185) = 107615430

Least Common Multiple (LCM) of 40170 and 40185 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40170 and 40185. First we will calculate the prime factors of 40170 and 40185.

Prime Factorization of 40170

Prime Factorization of 40185

Now multiplying the highest exponent prime factors to calculate the LCM of 40170 and 40185.

LCM(40170,40185) = 2¹ × 3² × 5¹ × 13¹ × 103¹ × 19¹ × 47¹
LCM(40170,40185) = 107615430