What is the Least Common Multiple of 11555 and 11570?

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 11555 and 11570 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11555 and 11570, than apply into the LCM equation.

GCF(11555,11570) = 5
LCM(11555,11570) = ( 11555 × 11570) / 5
LCM(11555,11570) = 133691350 / 5
LCM(11555,11570) = 26738270

Least Common Multiple (LCM) of 11555 and 11570 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11555 and 11570. First we will calculate the prime factors of 11555 and 11570.

Prime Factorization of 11555

Prime Factorization of 11570

Now multiplying the highest exponent prime factors to calculate the LCM of 11555 and 11570.

LCM(11555,11570) = 5¹ × 2311¹ × 2¹ × 13¹ × 89¹
LCM(11555,11570) = 26738270