What is the Least Common Multiple of 30555 and 30561?

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 30555 and 30561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30555 and 30561, than apply into the LCM equation.

GCF(30555,30561) = 3
LCM(30555,30561) = ( 30555 × 30561) / 3
LCM(30555,30561) = 933791355 / 3
LCM(30555,30561) = 311263785

Least Common Multiple (LCM) of 30555 and 30561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30555 and 30561. First we will calculate the prime factors of 30555 and 30561.

Prime Factorization of 30555

Prime Factorization of 30561

Now multiplying the highest exponent prime factors to calculate the LCM of 30555 and 30561.

LCM(30555,30561) = 3² × 5¹ × 7¹ × 97¹ × 61¹ × 167¹
LCM(30555,30561) = 311263785