What is the Least Common Multiple of 4556 and 4561?

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 4556 and 4561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4556 and 4561, than apply into the LCM equation.

GCF(4556,4561) = 1
LCM(4556,4561) = ( 4556 × 4561) / 1
LCM(4556,4561) = 20779916 / 1
LCM(4556,4561) = 20779916

Least Common Multiple (LCM) of 4556 and 4561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4556 and 4561. First we will calculate the prime factors of 4556 and 4561.

Prime Factorization of 4556

Prime Factorization of 4561

Now multiplying the highest exponent prime factors to calculate the LCM of 4556 and 4561.

LCM(4556,4561) = 2² × 17¹ × 67¹ × 4561¹
LCM(4556,4561) = 20779916