What is the Least Common Multiple of 16638 and 16642?

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 16642 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 16642, than apply into the LCM equation.

GCF(16638,16642) = 2
LCM(16638,16642) = ( 16638 × 16642) / 2
LCM(16638,16642) = 276889596 / 2
LCM(16638,16642) = 138444798

Least Common Multiple (LCM) of 16638 and 16642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16638 and 16642. First we will calculate the prime factors of 16638 and 16642.

Prime Factorization of 16638

Prime Factorization of 16642

Now multiplying the highest exponent prime factors to calculate the LCM of 16638 and 16642.

LCM(16638,16642) = 2¹ × 3¹ × 47¹ × 59¹ × 53¹ × 157¹
LCM(16638,16642) = 138444798