What is the Least Common Multiple of 16380 and 16389?

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 16380 and 16389 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16380 and 16389, than apply into the LCM equation.

GCF(16380,16389) = 9
LCM(16380,16389) = ( 16380 × 16389) / 9
LCM(16380,16389) = 268451820 / 9
LCM(16380,16389) = 29827980

Least Common Multiple (LCM) of 16380 and 16389 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16380 and 16389. First we will calculate the prime factors of 16380 and 16389.

Prime Factorization of 16380

Prime Factorization of 16389

Now multiplying the highest exponent prime factors to calculate the LCM of 16380 and 16389.

LCM(16380,16389) = 2² × 3³ × 5¹ × 7¹ × 13¹ × 607¹
LCM(16380,16389) = 29827980