What is the Least Common Multiple of 78777 and 78789?

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 78777 and 78789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78777 and 78789, than apply into the LCM equation.

GCF(78777,78789) = 3
LCM(78777,78789) = ( 78777 × 78789) / 3
LCM(78777,78789) = 6206761053 / 3
LCM(78777,78789) = 2068920351

Least Common Multiple (LCM) of 78777 and 78789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78777 and 78789. First we will calculate the prime factors of 78777 and 78789.

Prime Factorization of 78777

Prime Factorization of 78789

Now multiplying the highest exponent prime factors to calculate the LCM of 78777 and 78789.

LCM(78777,78789) = 3² × 8753¹ × 26263¹
LCM(78777,78789) = 2068920351