What is the Least Common Multiple of 51401 and 51409?

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 51401 and 51409 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51401 and 51409, than apply into the LCM equation.

GCF(51401,51409) = 1
LCM(51401,51409) = ( 51401 × 51409) / 1
LCM(51401,51409) = 2642474009 / 1
LCM(51401,51409) = 2642474009

Least Common Multiple (LCM) of 51401 and 51409 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51401 and 51409. First we will calculate the prime factors of 51401 and 51409.

Prime Factorization of 51401

Prime Factorization of 51409

Now multiplying the highest exponent prime factors to calculate the LCM of 51401 and 51409.

LCM(51401,51409) = 7² × 1049¹ × 101¹ × 509¹
LCM(51401,51409) = 2642474009