What is the Least Common Multiple of 11865 and 11872?

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 11865 and 11872 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11865 and 11872, than apply into the LCM equation.

GCF(11865,11872) = 7
LCM(11865,11872) = ( 11865 × 11872) / 7
LCM(11865,11872) = 140861280 / 7
LCM(11865,11872) = 20123040

Least Common Multiple (LCM) of 11865 and 11872 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11865 and 11872. First we will calculate the prime factors of 11865 and 11872.

Prime Factorization of 11865

Prime Factorization of 11872

Now multiplying the highest exponent prime factors to calculate the LCM of 11865 and 11872.

LCM(11865,11872) = 3¹ × 5¹ × 7¹ × 113¹ × 2⁵ × 53¹
LCM(11865,11872) = 20123040