What is the Least Common Multiple of 578 and 586?

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 578 and 586 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 578 and 586, than apply into the LCM equation.

GCF(578,586) = 2
LCM(578,586) = ( 578 × 586) / 2
LCM(578,586) = 338708 / 2
LCM(578,586) = 169354

Least Common Multiple (LCM) of 578 and 586 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 578 and 586. First we will calculate the prime factors of 578 and 586.

Prime Factorization of 578

Prime Factorization of 586

Now multiplying the highest exponent prime factors to calculate the LCM of 578 and 586.

LCM(578,586) = 2¹ × 17² × 293¹
LCM(578,586) = 169354