What is the Least Common Multiple of 17991 and 18004?

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 18004 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 18004, than apply into the LCM equation.

GCF(17991,18004) = 1
LCM(17991,18004) = ( 17991 × 18004) / 1
LCM(17991,18004) = 323909964 / 1
LCM(17991,18004) = 323909964

Least Common Multiple (LCM) of 17991 and 18004 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17991 and 18004. First we will calculate the prime factors of 17991 and 18004.

Prime Factorization of 17991

Prime Factorization of 18004

Now multiplying the highest exponent prime factors to calculate the LCM of 17991 and 18004.

LCM(17991,18004) = 3² × 1999¹ × 2² × 7¹ × 643¹
LCM(17991,18004) = 323909964