What is the Least Common Multiple of 85205 and 85215?

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 85205 and 85215 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85205 and 85215, than apply into the LCM equation.

GCF(85205,85215) = 5
LCM(85205,85215) = ( 85205 × 85215) / 5
LCM(85205,85215) = 7260744075 / 5
LCM(85205,85215) = 1452148815

Least Common Multiple (LCM) of 85205 and 85215 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85205 and 85215. First we will calculate the prime factors of 85205 and 85215.

Prime Factorization of 85205

Prime Factorization of 85215

Now multiplying the highest exponent prime factors to calculate the LCM of 85205 and 85215.

LCM(85205,85215) = 5¹ × 17041¹ × 3¹ × 13¹ × 19¹ × 23¹
LCM(85205,85215) = 1452148815