What is the Least Common Multiple of 57640 and 57655?

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 57640 and 57655 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 57640 and 57655, than apply into the LCM equation.

GCF(57640,57655) = 5
LCM(57640,57655) = ( 57640 × 57655) / 5
LCM(57640,57655) = 3323234200 / 5
LCM(57640,57655) = 664646840

Least Common Multiple (LCM) of 57640 and 57655 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 57640 and 57655. First we will calculate the prime factors of 57640 and 57655.

Prime Factorization of 57640

Prime Factorization of 57655

Now multiplying the highest exponent prime factors to calculate the LCM of 57640 and 57655.

LCM(57640,57655) = 2³ × 5¹ × 11¹ × 131¹ × 13¹ × 887¹
LCM(57640,57655) = 664646840