What is the Least Common Multiple of 66578 and 66590?

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 66578 and 66590 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66578 and 66590, than apply into the LCM equation.

GCF(66578,66590) = 2
LCM(66578,66590) = ( 66578 × 66590) / 2
LCM(66578,66590) = 4433429020 / 2
LCM(66578,66590) = 2216714510

Least Common Multiple (LCM) of 66578 and 66590 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66578 and 66590. First we will calculate the prime factors of 66578 and 66590.

Prime Factorization of 66578

Prime Factorization of 66590

Now multiplying the highest exponent prime factors to calculate the LCM of 66578 and 66590.

LCM(66578,66590) = 2¹ × 33289¹ × 5¹ × 6659¹
LCM(66578,66590) = 2216714510