What is the Least Common Multiple of 65557 and 65561?

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 65557 and 65561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65557 and 65561, than apply into the LCM equation.

GCF(65557,65561) = 1
LCM(65557,65561) = ( 65557 × 65561) / 1
LCM(65557,65561) = 4297982477 / 1
LCM(65557,65561) = 4297982477

Least Common Multiple (LCM) of 65557 and 65561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65557 and 65561. First we will calculate the prime factors of 65557 and 65561.

Prime Factorization of 65557

Prime Factorization of 65561

Now multiplying the highest exponent prime factors to calculate the LCM of 65557 and 65561.

LCM(65557,65561) = 65557¹ × 53¹ × 1237¹
LCM(65557,65561) = 4297982477