What is the Least Common Multiple of 42858 and 42878?

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 42858 and 42878 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42858 and 42878, than apply into the LCM equation.

GCF(42858,42878) = 2
LCM(42858,42878) = ( 42858 × 42878) / 2
LCM(42858,42878) = 1837665324 / 2
LCM(42858,42878) = 918832662

Least Common Multiple (LCM) of 42858 and 42878 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42858 and 42878. First we will calculate the prime factors of 42858 and 42878.

Prime Factorization of 42858

Prime Factorization of 42878

Now multiplying the highest exponent prime factors to calculate the LCM of 42858 and 42878.

LCM(42858,42878) = 2¹ × 3² × 2381¹ × 11¹ × 1949¹
LCM(42858,42878) = 918832662