What is the Least Common Multiple of 40405 and 40410?

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 40405 and 40410 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40405 and 40410, than apply into the LCM equation.

GCF(40405,40410) = 5
LCM(40405,40410) = ( 40405 × 40410) / 5
LCM(40405,40410) = 1632766050 / 5
LCM(40405,40410) = 326553210

Least Common Multiple (LCM) of 40405 and 40410 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40405 and 40410. First we will calculate the prime factors of 40405 and 40410.

Prime Factorization of 40405

Prime Factorization of 40410

Now multiplying the highest exponent prime factors to calculate the LCM of 40405 and 40410.

LCM(40405,40410) = 5¹ × 8081¹ × 2¹ × 3² × 449¹
LCM(40405,40410) = 326553210