What is the Least Common Multiple of 16620 and 16638?

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 16620 and 16638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16620 and 16638, than apply into the LCM equation.

GCF(16620,16638) = 6
LCM(16620,16638) = ( 16620 × 16638) / 6
LCM(16620,16638) = 276523560 / 6
LCM(16620,16638) = 46087260

Least Common Multiple (LCM) of 16620 and 16638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16620 and 16638. First we will calculate the prime factors of 16620 and 16638.

Prime Factorization of 16620

Prime Factorization of 16638

Now multiplying the highest exponent prime factors to calculate the LCM of 16620 and 16638.

LCM(16620,16638) = 2² × 3¹ × 5¹ × 277¹ × 47¹ × 59¹
LCM(16620,16638) = 46087260