What is the Least Common Multiple of 77020 and 77028?

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 77020 and 77028 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77020 and 77028, than apply into the LCM equation.

GCF(77020,77028) = 4
LCM(77020,77028) = ( 77020 × 77028) / 4
LCM(77020,77028) = 5932696560 / 4
LCM(77020,77028) = 1483174140

Least Common Multiple (LCM) of 77020 and 77028 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77020 and 77028. First we will calculate the prime factors of 77020 and 77028.

Prime Factorization of 77020

Prime Factorization of 77028

Now multiplying the highest exponent prime factors to calculate the LCM of 77020 and 77028.

LCM(77020,77028) = 2² × 5¹ × 3851¹ × 3¹ × 7² × 131¹
LCM(77020,77028) = 1483174140