What is the Least Common Multiple of 13921 and 13928?

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 13921 and 13928 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13921 and 13928, than apply into the LCM equation.

GCF(13921,13928) = 1
LCM(13921,13928) = ( 13921 × 13928) / 1
LCM(13921,13928) = 193891688 / 1
LCM(13921,13928) = 193891688

Least Common Multiple (LCM) of 13921 and 13928 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13921 and 13928. First we will calculate the prime factors of 13921 and 13928.

Prime Factorization of 13921

Prime Factorization of 13928

Now multiplying the highest exponent prime factors to calculate the LCM of 13921 and 13928.

LCM(13921,13928) = 13921¹ × 2³ × 1741¹
LCM(13921,13928) = 193891688