What is the Least Common Multiple of 13121 and 13140?

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 13121 and 13140 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13121 and 13140, than apply into the LCM equation.

GCF(13121,13140) = 1
LCM(13121,13140) = ( 13121 × 13140) / 1
LCM(13121,13140) = 172409940 / 1
LCM(13121,13140) = 172409940

Least Common Multiple (LCM) of 13121 and 13140 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13121 and 13140. First we will calculate the prime factors of 13121 and 13140.

Prime Factorization of 13121

Prime Factorization of 13140

Now multiplying the highest exponent prime factors to calculate the LCM of 13121 and 13140.

LCM(13121,13140) = 13121¹ × 2² × 3² × 5¹ × 73¹
LCM(13121,13140) = 172409940