What is the Least Common Multiple of 16000 and 16020?

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 16000 and 16020 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16000 and 16020, than apply into the LCM equation.

GCF(16000,16020) = 20
LCM(16000,16020) = ( 16000 × 16020) / 20
LCM(16000,16020) = 256320000 / 20
LCM(16000,16020) = 12816000

Least Common Multiple (LCM) of 16000 and 16020 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16000 and 16020. First we will calculate the prime factors of 16000 and 16020.

Prime Factorization of 16000

Prime Factorization of 16020

Now multiplying the highest exponent prime factors to calculate the LCM of 16000 and 16020.

LCM(16000,16020) = 2⁷ × 5³ × 3² × 89¹
LCM(16000,16020) = 12816000