What is the Least Common Multiple of 3645 and 3665?

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 3645 and 3665 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3645 and 3665, than apply into the LCM equation.

GCF(3645,3665) = 5
LCM(3645,3665) = ( 3645 × 3665) / 5
LCM(3645,3665) = 13358925 / 5
LCM(3645,3665) = 2671785

Least Common Multiple (LCM) of 3645 and 3665 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3645 and 3665. First we will calculate the prime factors of 3645 and 3665.

Prime Factorization of 3645

Prime Factorization of 3665

Now multiplying the highest exponent prime factors to calculate the LCM of 3645 and 3665.

LCM(3645,3665) = 3⁶ × 5¹ × 733¹
LCM(3645,3665) = 2671785