What is the Least Common Multiple of 16561 and 16581?

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 16561 and 16581 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16561 and 16581, than apply into the LCM equation.

GCF(16561,16581) = 1
LCM(16561,16581) = ( 16561 × 16581) / 1
LCM(16561,16581) = 274597941 / 1
LCM(16561,16581) = 274597941

Least Common Multiple (LCM) of 16561 and 16581 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16561 and 16581. First we will calculate the prime factors of 16561 and 16581.

Prime Factorization of 16561

Prime Factorization of 16581

Now multiplying the highest exponent prime factors to calculate the LCM of 16561 and 16581.

LCM(16561,16581) = 16561¹ × 3¹ × 5527¹
LCM(16561,16581) = 274597941