What is the Least Common Multiple of 17991 and 18001?

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 17991 and 18001 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17991 and 18001, than apply into the LCM equation.

GCF(17991,18001) = 1
LCM(17991,18001) = ( 17991 × 18001) / 1
LCM(17991,18001) = 323855991 / 1
LCM(17991,18001) = 323855991

Least Common Multiple (LCM) of 17991 and 18001 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17991 and 18001. First we will calculate the prime factors of 17991 and 18001.

Prime Factorization of 17991

Prime Factorization of 18001

Now multiplying the highest exponent prime factors to calculate the LCM of 17991 and 18001.

LCM(17991,18001) = 3² × 1999¹ × 47¹ × 383¹
LCM(17991,18001) = 323855991