What is the Least Common Multiple of 43205 and 43221?

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 43205 and 43221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43205 and 43221, than apply into the LCM equation.

GCF(43205,43221) = 1
LCM(43205,43221) = ( 43205 × 43221) / 1
LCM(43205,43221) = 1867363305 / 1
LCM(43205,43221) = 1867363305

Least Common Multiple (LCM) of 43205 and 43221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43205 and 43221. First we will calculate the prime factors of 43205 and 43221.

Prime Factorization of 43205

Prime Factorization of 43221

Now multiplying the highest exponent prime factors to calculate the LCM of 43205 and 43221.

LCM(43205,43221) = 5¹ × 8641¹ × 3¹ × 14407¹
LCM(43205,43221) = 1867363305