What is the Least Common Multiple of 51240 and 51245?

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 51240 and 51245 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51240 and 51245, than apply into the LCM equation.

GCF(51240,51245) = 5
LCM(51240,51245) = ( 51240 × 51245) / 5
LCM(51240,51245) = 2625793800 / 5
LCM(51240,51245) = 525158760

Least Common Multiple (LCM) of 51240 and 51245 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51240 and 51245. First we will calculate the prime factors of 51240 and 51245.

Prime Factorization of 51240

Prime Factorization of 51245

Now multiplying the highest exponent prime factors to calculate the LCM of 51240 and 51245.

LCM(51240,51245) = 2³ × 3¹ × 5¹ × 7¹ × 61¹ × 37¹ × 277¹
LCM(51240,51245) = 525158760