What is the Least Common Multiple of 28642 and 28660?

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 28642 and 28660 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28642 and 28660, than apply into the LCM equation.

GCF(28642,28660) = 2
LCM(28642,28660) = ( 28642 × 28660) / 2
LCM(28642,28660) = 820879720 / 2
LCM(28642,28660) = 410439860

Least Common Multiple (LCM) of 28642 and 28660 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28642 and 28660. First we will calculate the prime factors of 28642 and 28660.

Prime Factorization of 28642

Prime Factorization of 28660

Now multiplying the highest exponent prime factors to calculate the LCM of 28642 and 28660.

LCM(28642,28660) = 2² × 14321¹ × 5¹ × 1433¹
LCM(28642,28660) = 410439860