What is the Least Common Multiple of 91645 and 91665?

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 91645 and 91665 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91645 and 91665, than apply into the LCM equation.

GCF(91645,91665) = 5
LCM(91645,91665) = ( 91645 × 91665) / 5
LCM(91645,91665) = 8400638925 / 5
LCM(91645,91665) = 1680127785

Least Common Multiple (LCM) of 91645 and 91665 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91645 and 91665. First we will calculate the prime factors of 91645 and 91665.

Prime Factorization of 91645

Prime Factorization of 91665

Now multiplying the highest exponent prime factors to calculate the LCM of 91645 and 91665.

LCM(91645,91665) = 5¹ × 18329¹ × 3³ × 7¹ × 97¹
LCM(91645,91665) = 1680127785