What is the Least Common Multiple of 67557 and 67561?

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 67557 and 67561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67557 and 67561, than apply into the LCM equation.

GCF(67557,67561) = 1
LCM(67557,67561) = ( 67557 × 67561) / 1
LCM(67557,67561) = 4564218477 / 1
LCM(67557,67561) = 4564218477

Least Common Multiple (LCM) of 67557 and 67561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67557 and 67561. First we will calculate the prime factors of 67557 and 67561.

Prime Factorization of 67557

Prime Factorization of 67561

Now multiplying the highest exponent prime factors to calculate the LCM of 67557 and 67561.

LCM(67557,67561) = 3¹ × 7¹ × 3217¹ × 13¹ × 5197¹
LCM(67557,67561) = 4564218477