What is the Least Common Multiple of 4285 and 4289?

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 4285 and 4289 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4285 and 4289, than apply into the LCM equation.

GCF(4285,4289) = 1
LCM(4285,4289) = ( 4285 × 4289) / 1
LCM(4285,4289) = 18378365 / 1
LCM(4285,4289) = 18378365

Least Common Multiple (LCM) of 4285 and 4289 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4285 and 4289. First we will calculate the prime factors of 4285 and 4289.

Prime Factorization of 4285

Prime Factorization of 4289

Now multiplying the highest exponent prime factors to calculate the LCM of 4285 and 4289.

LCM(4285,4289) = 5¹ × 857¹ × 4289¹
LCM(4285,4289) = 18378365