What is the Least Common Multiple of 22185 and 22191?

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 22185 and 22191 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 22185 and 22191, than apply into the LCM equation.

GCF(22185,22191) = 3
LCM(22185,22191) = ( 22185 × 22191) / 3
LCM(22185,22191) = 492307335 / 3
LCM(22185,22191) = 164102445

Least Common Multiple (LCM) of 22185 and 22191 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 22185 and 22191. First we will calculate the prime factors of 22185 and 22191.

Prime Factorization of 22185

Prime Factorization of 22191

Now multiplying the highest exponent prime factors to calculate the LCM of 22185 and 22191.

LCM(22185,22191) = 3² × 5¹ × 17¹ × 29¹ × 13¹ × 569¹
LCM(22185,22191) = 164102445