What is the Least Common Multiple of 51660 and 51680?

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 51660 and 51680 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51660 and 51680, than apply into the LCM equation.

GCF(51660,51680) = 20
LCM(51660,51680) = ( 51660 × 51680) / 20
LCM(51660,51680) = 2669788800 / 20
LCM(51660,51680) = 133489440

Least Common Multiple (LCM) of 51660 and 51680 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51660 and 51680. First we will calculate the prime factors of 51660 and 51680.

Prime Factorization of 51660

Prime Factorization of 51680

Now multiplying the highest exponent prime factors to calculate the LCM of 51660 and 51680.

LCM(51660,51680) = 2⁵ × 3² × 5¹ × 7¹ × 41¹ × 17¹ × 19¹
LCM(51660,51680) = 133489440