What is the Least Common Multiple of 11390 and 11405?

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 11390 and 11405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11390 and 11405, than apply into the LCM equation.

GCF(11390,11405) = 5
LCM(11390,11405) = ( 11390 × 11405) / 5
LCM(11390,11405) = 129902950 / 5
LCM(11390,11405) = 25980590

Least Common Multiple (LCM) of 11390 and 11405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11390 and 11405. First we will calculate the prime factors of 11390 and 11405.

Prime Factorization of 11390

Prime Factorization of 11405

Now multiplying the highest exponent prime factors to calculate the LCM of 11390 and 11405.

LCM(11390,11405) = 2¹ × 5¹ × 17¹ × 67¹ × 2281¹
LCM(11390,11405) = 25980590