What is the Least Common Multiple of 64660 and 64668?

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 64660 and 64668 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64660 and 64668, than apply into the LCM equation.

GCF(64660,64668) = 4
LCM(64660,64668) = ( 64660 × 64668) / 4
LCM(64660,64668) = 4181432880 / 4
LCM(64660,64668) = 1045358220

Least Common Multiple (LCM) of 64660 and 64668 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64660 and 64668. First we will calculate the prime factors of 64660 and 64668.

Prime Factorization of 64660

Prime Factorization of 64668

Now multiplying the highest exponent prime factors to calculate the LCM of 64660 and 64668.

LCM(64660,64668) = 2² × 5¹ × 53¹ × 61¹ × 3¹ × 17¹ × 317¹
LCM(64660,64668) = 1045358220