What is the Least Common Multiple of 4421 and 4440?

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 4421 and 4440 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4421 and 4440, than apply into the LCM equation.

GCF(4421,4440) = 1
LCM(4421,4440) = ( 4421 × 4440) / 1
LCM(4421,4440) = 19629240 / 1
LCM(4421,4440) = 19629240

Least Common Multiple (LCM) of 4421 and 4440 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4421 and 4440. First we will calculate the prime factors of 4421 and 4440.

Prime Factorization of 4421

Prime Factorization of 4440

Now multiplying the highest exponent prime factors to calculate the LCM of 4421 and 4440.

LCM(4421,4440) = 4421¹ × 2³ × 3¹ × 5¹ × 37¹
LCM(4421,4440) = 19629240