What is the Least Common Multiple of 68205 and 68215?

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 68205 and 68215 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68205 and 68215, than apply into the LCM equation.

GCF(68205,68215) = 5
LCM(68205,68215) = ( 68205 × 68215) / 5
LCM(68205,68215) = 4652604075 / 5
LCM(68205,68215) = 930520815

Least Common Multiple (LCM) of 68205 and 68215 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68205 and 68215. First we will calculate the prime factors of 68205 and 68215.

Prime Factorization of 68205

Prime Factorization of 68215

Now multiplying the highest exponent prime factors to calculate the LCM of 68205 and 68215.

LCM(68205,68215) = 3¹ × 5¹ × 4547¹ × 7¹ × 1949¹
LCM(68205,68215) = 930520815