What is the Least Common Multiple of 40400 and 40415?

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 40400 and 40415 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40400 and 40415, than apply into the LCM equation.

GCF(40400,40415) = 5
LCM(40400,40415) = ( 40400 × 40415) / 5
LCM(40400,40415) = 1632766000 / 5
LCM(40400,40415) = 326553200

Least Common Multiple (LCM) of 40400 and 40415 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40400 and 40415. First we will calculate the prime factors of 40400 and 40415.

Prime Factorization of 40400

Prime Factorization of 40415

Now multiplying the highest exponent prime factors to calculate the LCM of 40400 and 40415.

LCM(40400,40415) = 2⁴ × 5² × 101¹ × 59¹ × 137¹
LCM(40400,40415) = 326553200