What is the Least Common Multiple of 20069 and 20081?

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 20069 and 20081 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20069 and 20081, than apply into the LCM equation.

GCF(20069,20081) = 1
LCM(20069,20081) = ( 20069 × 20081) / 1
LCM(20069,20081) = 403005589 / 1
LCM(20069,20081) = 403005589

Least Common Multiple (LCM) of 20069 and 20081 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20069 and 20081. First we will calculate the prime factors of 20069 and 20081.

Prime Factorization of 20069

Prime Factorization of 20081

Now multiplying the highest exponent prime factors to calculate the LCM of 20069 and 20081.

LCM(20069,20081) = 7¹ × 47¹ × 61¹ × 43¹ × 467¹
LCM(20069,20081) = 403005589