What is the Least Common Multiple of 25705 and 25721?

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 25705 and 25721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25705 and 25721, than apply into the LCM equation.

GCF(25705,25721) = 1
LCM(25705,25721) = ( 25705 × 25721) / 1
LCM(25705,25721) = 661158305 / 1
LCM(25705,25721) = 661158305

Least Common Multiple (LCM) of 25705 and 25721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25705 and 25721. First we will calculate the prime factors of 25705 and 25721.

Prime Factorization of 25705

Prime Factorization of 25721

Now multiplying the highest exponent prime factors to calculate the LCM of 25705 and 25721.

LCM(25705,25721) = 5¹ × 53¹ × 97¹ × 17² × 89¹
LCM(25705,25721) = 661158305