What is the Least Common Multiple of 20205 and 20223?

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 20205 and 20223 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20205 and 20223, than apply into the LCM equation.

GCF(20205,20223) = 9
LCM(20205,20223) = ( 20205 × 20223) / 9
LCM(20205,20223) = 408605715 / 9
LCM(20205,20223) = 45400635

Least Common Multiple (LCM) of 20205 and 20223 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20205 and 20223. First we will calculate the prime factors of 20205 and 20223.

Prime Factorization of 20205

Prime Factorization of 20223

Now multiplying the highest exponent prime factors to calculate the LCM of 20205 and 20223.

LCM(20205,20223) = 3³ × 5¹ × 449¹ × 7¹ × 107¹
LCM(20205,20223) = 45400635