What is the Least Common Multiple of 16390 and 16398?

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 16390 and 16398 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16390 and 16398, than apply into the LCM equation.

GCF(16390,16398) = 2
LCM(16390,16398) = ( 16390 × 16398) / 2
LCM(16390,16398) = 268763220 / 2
LCM(16390,16398) = 134381610

Least Common Multiple (LCM) of 16390 and 16398 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16390 and 16398. First we will calculate the prime factors of 16390 and 16398.

Prime Factorization of 16390

Prime Factorization of 16398

Now multiplying the highest exponent prime factors to calculate the LCM of 16390 and 16398.

LCM(16390,16398) = 2¹ × 5¹ × 11¹ × 149¹ × 3² × 911¹
LCM(16390,16398) = 134381610