What is the Least Common Multiple of 13009 and 13021?

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 13009 and 13021 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13009 and 13021, than apply into the LCM equation.

GCF(13009,13021) = 1
LCM(13009,13021) = ( 13009 × 13021) / 1
LCM(13009,13021) = 169390189 / 1
LCM(13009,13021) = 169390189

Least Common Multiple (LCM) of 13009 and 13021 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13009 and 13021. First we will calculate the prime factors of 13009 and 13021.

Prime Factorization of 13009

Prime Factorization of 13021

Now multiplying the highest exponent prime factors to calculate the LCM of 13009 and 13021.

LCM(13009,13021) = 13009¹ × 29¹ × 449¹
LCM(13009,13021) = 169390189