What is the Least Common Multiple of 13409 and 13423?

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 13409 and 13423 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13409 and 13423, than apply into the LCM equation.

GCF(13409,13423) = 1
LCM(13409,13423) = ( 13409 × 13423) / 1
LCM(13409,13423) = 179989007 / 1
LCM(13409,13423) = 179989007

Least Common Multiple (LCM) of 13409 and 13423 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13409 and 13423. First we will calculate the prime factors of 13409 and 13423.

Prime Factorization of 13409

Prime Factorization of 13423

Now multiplying the highest exponent prime factors to calculate the LCM of 13409 and 13423.

LCM(13409,13423) = 11¹ × 23¹ × 53¹ × 31¹ × 433¹
LCM(13409,13423) = 179989007