What is the Least Common Multiple of 78069 and 78081?

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 78069 and 78081 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78069 and 78081, than apply into the LCM equation.

GCF(78069,78081) = 3
LCM(78069,78081) = ( 78069 × 78081) / 3
LCM(78069,78081) = 6095705589 / 3
LCM(78069,78081) = 2031901863

Least Common Multiple (LCM) of 78069 and 78081 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78069 and 78081. First we will calculate the prime factors of 78069 and 78081.

Prime Factorization of 78069

Prime Factorization of 78081

Now multiplying the highest exponent prime factors to calculate the LCM of 78069 and 78081.

LCM(78069,78081) = 3¹ × 53¹ × 491¹ × 17¹ × 1531¹
LCM(78069,78081) = 2031901863