What is the Least Common Multiple of 72920 and 72924?

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 72920 and 72924 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72920 and 72924, than apply into the LCM equation.

GCF(72920,72924) = 4
LCM(72920,72924) = ( 72920 × 72924) / 4
LCM(72920,72924) = 5317618080 / 4
LCM(72920,72924) = 1329404520

Least Common Multiple (LCM) of 72920 and 72924 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72920 and 72924. First we will calculate the prime factors of 72920 and 72924.

Prime Factorization of 72920

Prime Factorization of 72924

Now multiplying the highest exponent prime factors to calculate the LCM of 72920 and 72924.

LCM(72920,72924) = 2³ × 5¹ × 1823¹ × 3¹ × 59¹ × 103¹
LCM(72920,72924) = 1329404520