What is the Least Common Multiple of 25643 and 25660?

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 25643 and 25660 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25643 and 25660, than apply into the LCM equation.

GCF(25643,25660) = 1
LCM(25643,25660) = ( 25643 × 25660) / 1
LCM(25643,25660) = 657999380 / 1
LCM(25643,25660) = 657999380

Least Common Multiple (LCM) of 25643 and 25660 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25643 and 25660. First we will calculate the prime factors of 25643 and 25660.

Prime Factorization of 25643

Prime Factorization of 25660

Now multiplying the highest exponent prime factors to calculate the LCM of 25643 and 25660.

LCM(25643,25660) = 25643¹ × 2² × 5¹ × 1283¹
LCM(25643,25660) = 657999380