What is the Least Common Multiple of 9555 and 9561?

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 9555 and 9561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9555 and 9561, than apply into the LCM equation.

GCF(9555,9561) = 3
LCM(9555,9561) = ( 9555 × 9561) / 3
LCM(9555,9561) = 91355355 / 3
LCM(9555,9561) = 30451785

Least Common Multiple (LCM) of 9555 and 9561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9555 and 9561. First we will calculate the prime factors of 9555 and 9561.

Prime Factorization of 9555

Prime Factorization of 9561

Now multiplying the highest exponent prime factors to calculate the LCM of 9555 and 9561.

LCM(9555,9561) = 3¹ × 5¹ × 7² × 13¹ × 3187¹
LCM(9555,9561) = 30451785