What is the Least Common Multiple of 25720 and 25738?

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 25720 and 25738 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25720 and 25738, than apply into the LCM equation.

GCF(25720,25738) = 2
LCM(25720,25738) = ( 25720 × 25738) / 2
LCM(25720,25738) = 661981360 / 2
LCM(25720,25738) = 330990680

Least Common Multiple (LCM) of 25720 and 25738 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25720 and 25738. First we will calculate the prime factors of 25720 and 25738.

Prime Factorization of 25720

Prime Factorization of 25738

Now multiplying the highest exponent prime factors to calculate the LCM of 25720 and 25738.

LCM(25720,25738) = 2³ × 5¹ × 643¹ × 17¹ × 757¹
LCM(25720,25738) = 330990680