What is the Least Common Multiple of 20450 and 20462?

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 20450 and 20462 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20450 and 20462, than apply into the LCM equation.

GCF(20450,20462) = 2
LCM(20450,20462) = ( 20450 × 20462) / 2
LCM(20450,20462) = 418447900 / 2
LCM(20450,20462) = 209223950

Least Common Multiple (LCM) of 20450 and 20462 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20450 and 20462. First we will calculate the prime factors of 20450 and 20462.

Prime Factorization of 20450

Prime Factorization of 20462

Now multiplying the highest exponent prime factors to calculate the LCM of 20450 and 20462.

LCM(20450,20462) = 2¹ × 5² × 409¹ × 13¹ × 787¹
LCM(20450,20462) = 209223950