What is the Least Common Multiple of 78321 and 78339?

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 78321 and 78339 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78321 and 78339, than apply into the LCM equation.

GCF(78321,78339) = 3
LCM(78321,78339) = ( 78321 × 78339) / 3
LCM(78321,78339) = 6135588819 / 3
LCM(78321,78339) = 2045196273

Least Common Multiple (LCM) of 78321 and 78339 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78321 and 78339. First we will calculate the prime factors of 78321 and 78339.

Prime Factorization of 78321

Prime Factorization of 78339

Now multiplying the highest exponent prime factors to calculate the LCM of 78321 and 78339.

LCM(78321,78339) = 3¹ × 26107¹ × 26113¹
LCM(78321,78339) = 2045196273