What is the Least Common Multiple of 72345 and 72360?

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 72345 and 72360 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72345 and 72360, than apply into the LCM equation.

GCF(72345,72360) = 15
LCM(72345,72360) = ( 72345 × 72360) / 15
LCM(72345,72360) = 5234884200 / 15
LCM(72345,72360) = 348992280

Least Common Multiple (LCM) of 72345 and 72360 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72345 and 72360. First we will calculate the prime factors of 72345 and 72360.

Prime Factorization of 72345

Prime Factorization of 72360

Now multiplying the highest exponent prime factors to calculate the LCM of 72345 and 72360.

LCM(72345,72360) = 3³ × 5¹ × 7¹ × 13¹ × 53¹ × 2³ × 67¹
LCM(72345,72360) = 348992280