What is the Least Common Multiple of 19858 and 19863?

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 19858 and 19863 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19858 and 19863, than apply into the LCM equation.

GCF(19858,19863) = 1
LCM(19858,19863) = ( 19858 × 19863) / 1
LCM(19858,19863) = 394439454 / 1
LCM(19858,19863) = 394439454

Least Common Multiple (LCM) of 19858 and 19863 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19858 and 19863. First we will calculate the prime factors of 19858 and 19863.

Prime Factorization of 19858

Prime Factorization of 19863

Now multiplying the highest exponent prime factors to calculate the LCM of 19858 and 19863.

LCM(19858,19863) = 2¹ × 9929¹ × 3² × 2207¹
LCM(19858,19863) = 394439454