What is the Least Common Multiple of 20020 and 20028?

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 20020 and 20028 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20020 and 20028, than apply into the LCM equation.

GCF(20020,20028) = 4
LCM(20020,20028) = ( 20020 × 20028) / 4
LCM(20020,20028) = 400960560 / 4
LCM(20020,20028) = 100240140

Least Common Multiple (LCM) of 20020 and 20028 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20020 and 20028. First we will calculate the prime factors of 20020 and 20028.

Prime Factorization of 20020

Prime Factorization of 20028

Now multiplying the highest exponent prime factors to calculate the LCM of 20020 and 20028.

LCM(20020,20028) = 2² × 5¹ × 7¹ × 11¹ × 13¹ × 3¹ × 1669¹
LCM(20020,20028) = 100240140