What is the Least Common Multiple of 13205 and 13209?

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 13205 and 13209 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13205 and 13209, than apply into the LCM equation.

GCF(13205,13209) = 1
LCM(13205,13209) = ( 13205 × 13209) / 1
LCM(13205,13209) = 174424845 / 1
LCM(13205,13209) = 174424845

Least Common Multiple (LCM) of 13205 and 13209 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13205 and 13209. First we will calculate the prime factors of 13205 and 13209.

Prime Factorization of 13205

Prime Factorization of 13209

Now multiplying the highest exponent prime factors to calculate the LCM of 13205 and 13209.

LCM(13205,13209) = 5¹ × 19¹ × 139¹ × 3¹ × 7¹ × 17¹ × 37¹
LCM(13205,13209) = 174424845