What is the Least Common Multiple of 55140 and 55158?

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 55140 and 55158 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55140 and 55158, than apply into the LCM equation.

GCF(55140,55158) = 6
LCM(55140,55158) = ( 55140 × 55158) / 6
LCM(55140,55158) = 3041412120 / 6
LCM(55140,55158) = 506902020

Least Common Multiple (LCM) of 55140 and 55158 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55140 and 55158. First we will calculate the prime factors of 55140 and 55158.

Prime Factorization of 55140

Prime Factorization of 55158

Now multiplying the highest exponent prime factors to calculate the LCM of 55140 and 55158.

LCM(55140,55158) = 2² × 3¹ × 5¹ × 919¹ × 29¹ × 317¹
LCM(55140,55158) = 506902020