What is the Least Common Multiple of 12160 and 12165?

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 12160 and 12165 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12160 and 12165, than apply into the LCM equation.

GCF(12160,12165) = 5
LCM(12160,12165) = ( 12160 × 12165) / 5
LCM(12160,12165) = 147926400 / 5
LCM(12160,12165) = 29585280

Least Common Multiple (LCM) of 12160 and 12165 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12160 and 12165. First we will calculate the prime factors of 12160 and 12165.

Prime Factorization of 12160

Prime Factorization of 12165

Now multiplying the highest exponent prime factors to calculate the LCM of 12160 and 12165.

LCM(12160,12165) = 2⁷ × 5¹ × 19¹ × 3¹ × 811¹
LCM(12160,12165) = 29585280