What is the Least Common Multiple of 42189 and 42193?

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 42189 and 42193 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42189 and 42193, than apply into the LCM equation.

GCF(42189,42193) = 1
LCM(42189,42193) = ( 42189 × 42193) / 1
LCM(42189,42193) = 1780080477 / 1
LCM(42189,42193) = 1780080477

Least Common Multiple (LCM) of 42189 and 42193 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42189 and 42193. First we will calculate the prime factors of 42189 and 42193.

Prime Factorization of 42189

Prime Factorization of 42193

Now multiplying the highest exponent prime factors to calculate the LCM of 42189 and 42193.

LCM(42189,42193) = 3¹ × 7³ × 41¹ × 42193¹
LCM(42189,42193) = 1780080477