What is the Least Common Multiple of 71997 and 72001?

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 71997 and 72001 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71997 and 72001, than apply into the LCM equation.

GCF(71997,72001) = 1
LCM(71997,72001) = ( 71997 × 72001) / 1
LCM(71997,72001) = 5183855997 / 1
LCM(71997,72001) = 5183855997

Least Common Multiple (LCM) of 71997 and 72001 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71997 and 72001. First we will calculate the prime factors of 71997 and 72001.

Prime Factorization of 71997

Prime Factorization of 72001

Now multiplying the highest exponent prime factors to calculate the LCM of 71997 and 72001.

LCM(71997,72001) = 3¹ × 103¹ × 233¹ × 89¹ × 809¹
LCM(71997,72001) = 5183855997