What is the Least Common Multiple of 16991 and 16997?

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 16991 and 16997 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16991 and 16997, than apply into the LCM equation.

GCF(16991,16997) = 1
LCM(16991,16997) = ( 16991 × 16997) / 1
LCM(16991,16997) = 288796027 / 1
LCM(16991,16997) = 288796027

Least Common Multiple (LCM) of 16991 and 16997 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16991 and 16997. First we will calculate the prime factors of 16991 and 16997.

Prime Factorization of 16991

Prime Factorization of 16997

Now multiplying the highest exponent prime factors to calculate the LCM of 16991 and 16997.

LCM(16991,16997) = 13¹ × 1307¹ × 23¹ × 739¹
LCM(16991,16997) = 288796027