What is the Least Common Multiple of 1305 and 1323?

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 1305 and 1323 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1305 and 1323, than apply into the LCM equation.

GCF(1305,1323) = 9
LCM(1305,1323) = ( 1305 × 1323) / 9
LCM(1305,1323) = 1726515 / 9
LCM(1305,1323) = 191835

Least Common Multiple (LCM) of 1305 and 1323 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1305 and 1323. First we will calculate the prime factors of 1305 and 1323.

Prime Factorization of 1305

Prime Factorization of 1323

Now multiplying the highest exponent prime factors to calculate the LCM of 1305 and 1323.

LCM(1305,1323) = 3³ × 5¹ × 29¹ × 7²
LCM(1305,1323) = 191835