What is the Least Common Multiple of 28553 and 28561?

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 28553 and 28561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28553 and 28561, than apply into the LCM equation.

GCF(28553,28561) = 1
LCM(28553,28561) = ( 28553 × 28561) / 1
LCM(28553,28561) = 815502233 / 1
LCM(28553,28561) = 815502233

Least Common Multiple (LCM) of 28553 and 28561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28553 and 28561. First we will calculate the prime factors of 28553 and 28561.

Prime Factorization of 28553

Prime Factorization of 28561

Now multiplying the highest exponent prime factors to calculate the LCM of 28553 and 28561.

LCM(28553,28561) = 7¹ × 4079¹ × 13⁴
LCM(28553,28561) = 815502233