What is the Least Common Multiple of 18821 and 18838?

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 18821 and 18838 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18821 and 18838, than apply into the LCM equation.

GCF(18821,18838) = 1
LCM(18821,18838) = ( 18821 × 18838) / 1
LCM(18821,18838) = 354549998 / 1
LCM(18821,18838) = 354549998

Least Common Multiple (LCM) of 18821 and 18838 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18821 and 18838. First we will calculate the prime factors of 18821 and 18838.

Prime Factorization of 18821

Prime Factorization of 18838

Now multiplying the highest exponent prime factors to calculate the LCM of 18821 and 18838.

LCM(18821,18838) = 11¹ × 29¹ × 59¹ × 2¹ × 9419¹
LCM(18821,18838) = 354549998