What is the Least Common Multiple of 28991 and 28997?

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 28991 and 28997 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28991 and 28997, than apply into the LCM equation.

GCF(28991,28997) = 1
LCM(28991,28997) = ( 28991 × 28997) / 1
LCM(28991,28997) = 840652027 / 1
LCM(28991,28997) = 840652027

Least Common Multiple (LCM) of 28991 and 28997 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28991 and 28997. First we will calculate the prime factors of 28991 and 28997.

Prime Factorization of 28991

Prime Factorization of 28997

Now multiplying the highest exponent prime factors to calculate the LCM of 28991 and 28997.

LCM(28991,28997) = 53¹ × 547¹ × 107¹ × 271¹
LCM(28991,28997) = 840652027