What is the Least Common Multiple of 42289 and 42299?

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 42289 and 42299 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42289 and 42299, than apply into the LCM equation.

GCF(42289,42299) = 1
LCM(42289,42299) = ( 42289 × 42299) / 1
LCM(42289,42299) = 1788782411 / 1
LCM(42289,42299) = 1788782411

Least Common Multiple (LCM) of 42289 and 42299 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42289 and 42299. First we will calculate the prime factors of 42289 and 42299.

Prime Factorization of 42289

Prime Factorization of 42299

Now multiplying the highest exponent prime factors to calculate the LCM of 42289 and 42299.

LCM(42289,42299) = 13¹ × 3253¹ × 42299¹
LCM(42289,42299) = 1788782411