What is the Least Common Multiple of 64665 and 64680?

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 64665 and 64680 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64665 and 64680, than apply into the LCM equation.

GCF(64665,64680) = 15
LCM(64665,64680) = ( 64665 × 64680) / 15
LCM(64665,64680) = 4182532200 / 15
LCM(64665,64680) = 278835480

Least Common Multiple (LCM) of 64665 and 64680 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64665 and 64680. First we will calculate the prime factors of 64665 and 64680.

Prime Factorization of 64665

Prime Factorization of 64680

Now multiplying the highest exponent prime factors to calculate the LCM of 64665 and 64680.

LCM(64665,64680) = 3³ × 5¹ × 479¹ × 2³ × 7² × 11¹
LCM(64665,64680) = 278835480