What is the Least Common Multiple of 40388 and 40400?

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 40388 and 40400 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40388 and 40400, than apply into the LCM equation.

GCF(40388,40400) = 4
LCM(40388,40400) = ( 40388 × 40400) / 4
LCM(40388,40400) = 1631675200 / 4
LCM(40388,40400) = 407918800

Least Common Multiple (LCM) of 40388 and 40400 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40388 and 40400. First we will calculate the prime factors of 40388 and 40400.

Prime Factorization of 40388

Prime Factorization of 40400

Now multiplying the highest exponent prime factors to calculate the LCM of 40388 and 40400.

LCM(40388,40400) = 2⁴ × 23¹ × 439¹ × 5² × 101¹
LCM(40388,40400) = 407918800