What is the Least Common Multiple of 16638 and 16643?

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 16638 and 16643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16638 and 16643, than apply into the LCM equation.

GCF(16638,16643) = 1
LCM(16638,16643) = ( 16638 × 16643) / 1
LCM(16638,16643) = 276906234 / 1
LCM(16638,16643) = 276906234

Least Common Multiple (LCM) of 16638 and 16643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16638 and 16643. First we will calculate the prime factors of 16638 and 16643.

Prime Factorization of 16638

Prime Factorization of 16643

Now multiplying the highest exponent prime factors to calculate the LCM of 16638 and 16643.

LCM(16638,16643) = 2¹ × 3¹ × 47¹ × 59¹ × 11¹ × 17¹ × 89¹
LCM(16638,16643) = 276906234