What is the Least Common Multiple of 13881 and 13887?

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 13881 and 13887 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13881 and 13887, than apply into the LCM equation.

GCF(13881,13887) = 3
LCM(13881,13887) = ( 13881 × 13887) / 3
LCM(13881,13887) = 192765447 / 3
LCM(13881,13887) = 64255149

Least Common Multiple (LCM) of 13881 and 13887 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13881 and 13887. First we will calculate the prime factors of 13881 and 13887.

Prime Factorization of 13881

Prime Factorization of 13887

Now multiplying the highest exponent prime factors to calculate the LCM of 13881 and 13887.

LCM(13881,13887) = 3² × 7¹ × 661¹ × 1543¹
LCM(13881,13887) = 64255149