What is the Least Common Multiple of 6605 and 6615?

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 6605 and 6615 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6605 and 6615, than apply into the LCM equation.

GCF(6605,6615) = 5
LCM(6605,6615) = ( 6605 × 6615) / 5
LCM(6605,6615) = 43692075 / 5
LCM(6605,6615) = 8738415

Least Common Multiple (LCM) of 6605 and 6615 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6605 and 6615. First we will calculate the prime factors of 6605 and 6615.

Prime Factorization of 6605

Prime Factorization of 6615

Now multiplying the highest exponent prime factors to calculate the LCM of 6605 and 6615.

LCM(6605,6615) = 5¹ × 1321¹ × 3³ × 7²
LCM(6605,6615) = 8738415