What is the Least Common Multiple of 4239 and 4243?

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 4239 and 4243 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4239 and 4243, than apply into the LCM equation.

GCF(4239,4243) = 1
LCM(4239,4243) = ( 4239 × 4243) / 1
LCM(4239,4243) = 17986077 / 1
LCM(4239,4243) = 17986077

Least Common Multiple (LCM) of 4239 and 4243 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4239 and 4243. First we will calculate the prime factors of 4239 and 4243.

Prime Factorization of 4239

Prime Factorization of 4243

Now multiplying the highest exponent prime factors to calculate the LCM of 4239 and 4243.

LCM(4239,4243) = 3³ × 157¹ × 4243¹
LCM(4239,4243) = 17986077