What is the Least Common Multiple of 16020 and 16040?

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 16020 and 16040 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16020 and 16040, than apply into the LCM equation.

GCF(16020,16040) = 20
LCM(16020,16040) = ( 16020 × 16040) / 20
LCM(16020,16040) = 256960800 / 20
LCM(16020,16040) = 12848040

Least Common Multiple (LCM) of 16020 and 16040 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16020 and 16040. First we will calculate the prime factors of 16020 and 16040.

Prime Factorization of 16020

Prime Factorization of 16040

Now multiplying the highest exponent prime factors to calculate the LCM of 16020 and 16040.

LCM(16020,16040) = 2³ × 3² × 5¹ × 89¹ × 401¹
LCM(16020,16040) = 12848040