What is the Least Common Multiple of 12090 and 12108?

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 12090 and 12108 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12090 and 12108, than apply into the LCM equation.

GCF(12090,12108) = 6
LCM(12090,12108) = ( 12090 × 12108) / 6
LCM(12090,12108) = 146385720 / 6
LCM(12090,12108) = 24397620

Least Common Multiple (LCM) of 12090 and 12108 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12090 and 12108. First we will calculate the prime factors of 12090 and 12108.

Prime Factorization of 12090

Prime Factorization of 12108

Now multiplying the highest exponent prime factors to calculate the LCM of 12090 and 12108.

LCM(12090,12108) = 2² × 3¹ × 5¹ × 13¹ × 31¹ × 1009¹
LCM(12090,12108) = 24397620