What is the Least Common Multiple of 12072 and 12080?

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 12072 and 12080 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12072 and 12080, than apply into the LCM equation.

GCF(12072,12080) = 8
LCM(12072,12080) = ( 12072 × 12080) / 8
LCM(12072,12080) = 145829760 / 8
LCM(12072,12080) = 18228720

Least Common Multiple (LCM) of 12072 and 12080 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12072 and 12080. First we will calculate the prime factors of 12072 and 12080.

Prime Factorization of 12072

Prime Factorization of 12080

Now multiplying the highest exponent prime factors to calculate the LCM of 12072 and 12080.

LCM(12072,12080) = 2⁴ × 3¹ × 503¹ × 5¹ × 151¹
LCM(12072,12080) = 18228720