What is the Least Common Multiple of 12281 and 12289?

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 12281 and 12289 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12281 and 12289, than apply into the LCM equation.

GCF(12281,12289) = 1
LCM(12281,12289) = ( 12281 × 12289) / 1
LCM(12281,12289) = 150921209 / 1
LCM(12281,12289) = 150921209

Least Common Multiple (LCM) of 12281 and 12289 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12281 and 12289. First we will calculate the prime factors of 12281 and 12289.

Prime Factorization of 12281

Prime Factorization of 12289

Now multiplying the highest exponent prime factors to calculate the LCM of 12281 and 12289.

LCM(12281,12289) = 12281¹ × 12289¹
LCM(12281,12289) = 150921209