What is the Least Common Multiple of 12389 and 12401?

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 12389 and 12401 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12389 and 12401, than apply into the LCM equation.

GCF(12389,12401) = 1
LCM(12389,12401) = ( 12389 × 12401) / 1
LCM(12389,12401) = 153635989 / 1
LCM(12389,12401) = 153635989

Least Common Multiple (LCM) of 12389 and 12401 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12389 and 12401. First we will calculate the prime factors of 12389 and 12401.

Prime Factorization of 12389

Prime Factorization of 12401

Now multiplying the highest exponent prime factors to calculate the LCM of 12389 and 12401.

LCM(12389,12401) = 13¹ × 953¹ × 12401¹
LCM(12389,12401) = 153635989