What is the Least Common Multiple of 2851 and 2856?

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 2851 and 2856 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2851 and 2856, than apply into the LCM equation.

GCF(2851,2856) = 1
LCM(2851,2856) = ( 2851 × 2856) / 1
LCM(2851,2856) = 8142456 / 1
LCM(2851,2856) = 8142456

Least Common Multiple (LCM) of 2851 and 2856 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2851 and 2856. First we will calculate the prime factors of 2851 and 2856.

Prime Factorization of 2851

Prime Factorization of 2856

Now multiplying the highest exponent prime factors to calculate the LCM of 2851 and 2856.

LCM(2851,2856) = 2851¹ × 2³ × 3¹ × 7¹ × 17¹
LCM(2851,2856) = 8142456