What is the Least Common Multiple of 11207 and 11221?

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 11207 and 11221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11207 and 11221, than apply into the LCM equation.

GCF(11207,11221) = 7
LCM(11207,11221) = ( 11207 × 11221) / 7
LCM(11207,11221) = 125753747 / 7
LCM(11207,11221) = 17964821

Least Common Multiple (LCM) of 11207 and 11221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11207 and 11221. First we will calculate the prime factors of 11207 and 11221.

Prime Factorization of 11207

Prime Factorization of 11221

Now multiplying the highest exponent prime factors to calculate the LCM of 11207 and 11221.

LCM(11207,11221) = 7² × 1601¹ × 229¹
LCM(11207,11221) = 17964821