What is the Least Common Multiple of 12820 and 12828?

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 12820 and 12828 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12820 and 12828, than apply into the LCM equation.

GCF(12820,12828) = 4
LCM(12820,12828) = ( 12820 × 12828) / 4
LCM(12820,12828) = 164454960 / 4
LCM(12820,12828) = 41113740

Least Common Multiple (LCM) of 12820 and 12828 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12820 and 12828. First we will calculate the prime factors of 12820 and 12828.

Prime Factorization of 12820

Prime Factorization of 12828

Now multiplying the highest exponent prime factors to calculate the LCM of 12820 and 12828.

LCM(12820,12828) = 2² × 5¹ × 641¹ × 3¹ × 1069¹
LCM(12820,12828) = 41113740