What is the Least Common Multiple of 2842 and 2858?

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 2842 and 2858 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2842 and 2858, than apply into the LCM equation.

GCF(2842,2858) = 2
LCM(2842,2858) = ( 2842 × 2858) / 2
LCM(2842,2858) = 8122436 / 2
LCM(2842,2858) = 4061218

Least Common Multiple (LCM) of 2842 and 2858 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2842 and 2858. First we will calculate the prime factors of 2842 and 2858.

Prime Factorization of 2842

Prime Factorization of 2858

Now multiplying the highest exponent prime factors to calculate the LCM of 2842 and 2858.

LCM(2842,2858) = 2¹ × 7² × 29¹ × 1429¹
LCM(2842,2858) = 4061218