What is the Least Common Multiple of 64105 and 64115?

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 64105 and 64115 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64105 and 64115, than apply into the LCM equation.

GCF(64105,64115) = 5
LCM(64105,64115) = ( 64105 × 64115) / 5
LCM(64105,64115) = 4110092075 / 5
LCM(64105,64115) = 822018415

Least Common Multiple (LCM) of 64105 and 64115 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64105 and 64115. First we will calculate the prime factors of 64105 and 64115.

Prime Factorization of 64105

Prime Factorization of 64115

Now multiplying the highest exponent prime factors to calculate the LCM of 64105 and 64115.

LCM(64105,64115) = 5¹ × 12821¹ × 12823¹
LCM(64105,64115) = 822018415