What is the Least Common Multiple of 14405 and 14420?

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 14405 and 14420 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 14405 and 14420, than apply into the LCM equation.

GCF(14405,14420) = 5
LCM(14405,14420) = ( 14405 × 14420) / 5
LCM(14405,14420) = 207720100 / 5
LCM(14405,14420) = 41544020

Least Common Multiple (LCM) of 14405 and 14420 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 14405 and 14420. First we will calculate the prime factors of 14405 and 14420.

Prime Factorization of 14405

Prime Factorization of 14420

Now multiplying the highest exponent prime factors to calculate the LCM of 14405 and 14420.

LCM(14405,14420) = 5¹ × 43¹ × 67¹ × 2² × 7¹ × 103¹
LCM(14405,14420) = 41544020