What is the Least Common Multiple of 56840 and 56855?

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 56840 and 56855 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56840 and 56855, than apply into the LCM equation.

GCF(56840,56855) = 5
LCM(56840,56855) = ( 56840 × 56855) / 5
LCM(56840,56855) = 3231638200 / 5
LCM(56840,56855) = 646327640

Least Common Multiple (LCM) of 56840 and 56855 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56840 and 56855. First we will calculate the prime factors of 56840 and 56855.

Prime Factorization of 56840

Prime Factorization of 56855

Now multiplying the highest exponent prime factors to calculate the LCM of 56840 and 56855.

LCM(56840,56855) = 2³ × 5¹ × 7² × 29¹ × 83¹ × 137¹
LCM(56840,56855) = 646327640