What is the Least Common Multiple of 13869 and 13881?

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 13869 and 13881 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13869 and 13881, than apply into the LCM equation.

GCF(13869,13881) = 3
LCM(13869,13881) = ( 13869 × 13881) / 3
LCM(13869,13881) = 192515589 / 3
LCM(13869,13881) = 64171863

Least Common Multiple (LCM) of 13869 and 13881 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13869 and 13881. First we will calculate the prime factors of 13869 and 13881.

Prime Factorization of 13869

Prime Factorization of 13881

Now multiplying the highest exponent prime factors to calculate the LCM of 13869 and 13881.

LCM(13869,13881) = 3² × 23¹ × 67¹ × 7¹ × 661¹
LCM(13869,13881) = 64171863