What is the Least Common Multiple of 72391 and 72409?

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 72391 and 72409 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72391 and 72409, than apply into the LCM equation.

GCF(72391,72409) = 1
LCM(72391,72409) = ( 72391 × 72409) / 1
LCM(72391,72409) = 5241759919 / 1
LCM(72391,72409) = 5241759919

Least Common Multiple (LCM) of 72391 and 72409 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72391 and 72409. First we will calculate the prime factors of 72391 and 72409.

Prime Factorization of 72391

Prime Factorization of 72409

Now multiplying the highest exponent prime factors to calculate the LCM of 72391 and 72409.

LCM(72391,72409) = 11¹ × 6581¹ × 19¹ × 37¹ × 103¹
LCM(72391,72409) = 5241759919