What is the Least Common Multiple of 20789 and 20799?

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 20789 and 20799 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20789 and 20799, than apply into the LCM equation.

GCF(20789,20799) = 1
LCM(20789,20799) = ( 20789 × 20799) / 1
LCM(20789,20799) = 432390411 / 1
LCM(20789,20799) = 432390411

Least Common Multiple (LCM) of 20789 and 20799 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20789 and 20799. First we will calculate the prime factors of 20789 and 20799.

Prime Factorization of 20789

Prime Factorization of 20799

Now multiplying the highest exponent prime factors to calculate the LCM of 20789 and 20799.

LCM(20789,20799) = 20789¹ × 3² × 2311¹
LCM(20789,20799) = 432390411