What is the Least Common Multiple of 2580 and 2591?

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 2580 and 2591 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2580 and 2591, than apply into the LCM equation.

GCF(2580,2591) = 1
LCM(2580,2591) = ( 2580 × 2591) / 1
LCM(2580,2591) = 6684780 / 1
LCM(2580,2591) = 6684780

Least Common Multiple (LCM) of 2580 and 2591 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2580 and 2591. First we will calculate the prime factors of 2580 and 2591.

Prime Factorization of 2580

Prime Factorization of 2591

Now multiplying the highest exponent prime factors to calculate the LCM of 2580 and 2591.

LCM(2580,2591) = 2² × 3¹ × 5¹ × 43¹ × 2591¹
LCM(2580,2591) = 6684780