What is the Least Common Multiple of 72991 and 72999?

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 72991 and 72999 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72991 and 72999, than apply into the LCM equation.

GCF(72991,72999) = 1
LCM(72991,72999) = ( 72991 × 72999) / 1
LCM(72991,72999) = 5328270009 / 1
LCM(72991,72999) = 5328270009

Least Common Multiple (LCM) of 72991 and 72999 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72991 and 72999. First we will calculate the prime factors of 72991 and 72999.

Prime Factorization of 72991

Prime Factorization of 72999

Now multiplying the highest exponent prime factors to calculate the LCM of 72991 and 72999.

LCM(72991,72999) = 47¹ × 1553¹ × 3² × 8111¹
LCM(72991,72999) = 5328270009