What is the Least Common Multiple of 78312 and 78318?

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 78312 and 78318 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78312 and 78318, than apply into the LCM equation.

GCF(78312,78318) = 6
LCM(78312,78318) = ( 78312 × 78318) / 6
LCM(78312,78318) = 6133239216 / 6
LCM(78312,78318) = 1022206536

Least Common Multiple (LCM) of 78312 and 78318 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78312 and 78318. First we will calculate the prime factors of 78312 and 78318.

Prime Factorization of 78312

Prime Factorization of 78318

Now multiplying the highest exponent prime factors to calculate the LCM of 78312 and 78318.

LCM(78312,78318) = 2³ × 3² × 13¹ × 251¹ × 19¹ × 229¹
LCM(78312,78318) = 1022206536