What is the Least Common Multiple of 64557 and 64561?

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 64557 and 64561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64557 and 64561, than apply into the LCM equation.

GCF(64557,64561) = 1
LCM(64557,64561) = ( 64557 × 64561) / 1
LCM(64557,64561) = 4167864477 / 1
LCM(64557,64561) = 4167864477

Least Common Multiple (LCM) of 64557 and 64561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64557 and 64561. First we will calculate the prime factors of 64557 and 64561.

Prime Factorization of 64557

Prime Factorization of 64561

Now multiplying the highest exponent prime factors to calculate the LCM of 64557 and 64561.

LCM(64557,64561) = 3⁴ × 797¹ × 7¹ × 23¹ × 401¹
LCM(64557,64561) = 4167864477