What is the Least Common Multiple of 68209 and 68221?

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 68209 and 68221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68209 and 68221, than apply into the LCM equation.

GCF(68209,68221) = 1
LCM(68209,68221) = ( 68209 × 68221) / 1
LCM(68209,68221) = 4653286189 / 1
LCM(68209,68221) = 4653286189

Least Common Multiple (LCM) of 68209 and 68221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68209 and 68221. First we will calculate the prime factors of 68209 and 68221.

Prime Factorization of 68209

Prime Factorization of 68221

Now multiplying the highest exponent prime factors to calculate the LCM of 68209 and 68221.

LCM(68209,68221) = 68209¹ × 17¹ × 4013¹
LCM(68209,68221) = 4653286189